Online English Vocabulary Flashcards for High School 11 Words

afflict (verb) /əˈflɪkt/
Definition: To cause pain, suffering, or distress to someone or something.
Example Sentence: "Addiction can afflict people of all ages and backgrounds."
Synonyms: annoy; besiege; bother; burden; distress; harass
Opposite Meaning: comfort

ancient (adjective) /ˈeɪn ʃənt/
Definition: Referring to a period in history that is far in the past and distant from the present time.
Example Sentence: "The archaeologists discovered ancient artifacts buried deep beneath the desert sands."
Synonyms: aged; antiquated; archaic; bygone; historic; hoary
Opposite Meaning: modern

aposematic (adjective) /ˌæp ə səˈmæt ɪk/
Definition: Serving as a warning signal to potential predators, especially by a specific type of coloration or pattern.
Example Sentence: "The aposematic coloration of the poison dart frog warned predators of its toxic nature."
Synonyms: admonitory; alarming; alerting; cautionary; conspicuous; defensive
Opposite Meaning: inviting

astonished (adjective) /əˈstɒn ɪʃt/
Definition: Extreme surprise, amazement, or disbelief.
Example Sentence: "He was astonished at the sheer number of stars visible in the clear night sky."
Synonyms: amazed; astounded; awestruck; dumbfounded; flabbergasted; gobsmacked
Opposite Meaning: unsurprised

belvedere (noun) /ˈbɛl vɪˌdɪər/
Definition: A structure or architectural element, such as a pavilion, turret, or raised platform, designed to provide a scenic view of the surrounding landscape.
Example Sentence: "The hotel's rooftop offered a stunning belvedere, overlooking the city's skyline."
Synonyms: eyrie; gazebo; kiosk; lookout; observatory; overlook
Opposite Meaning: closure

biometric (adjective) /ˌbaɪ əˈmɛ trɪk/
Definition: Pertaining to the measurement, analysis, and identification of unique biological characteristics and features of living organisms.
Example Sentence: "His biometric data, such as fingerprints and iris patterns, were used to access the high-security vault."
Synonyms: distinctive; facial; fingerprinted; identifiable; individualized; personal
Opposite Meaning: imprecise

bolt (verb) /boʊlt/
Definition: To run or move away suddenly and quickly, often with great speed.
Example Sentence: "We watched the cyclists bolt down the hill at terrific speeds."
Synonyms: dash; devour; flash; flee; gobble; gulp
Opposite Meaning: stay

caravan (noun) /ˈkær əˌvæn/
Definition: A mobile dwelling or a type of vehicle designed for transportation and accommodation purposes.
Example Sentence: "The caravan was equipped with a small kitchen and a comfortable bed."
Synonyms: Airstream; camper; campervan; coach; motorcaravan; motorcoach
Opposite Meaning: stationary

cavalcade (noun) /ˌkav(ə)lˈkeɪd/
Definition: A procession of people or vehicles moving along a particular route.
Example Sentence: "The annual parade featured a cavalcade of floats and marching bands."
Synonyms: armada; caravan; convoy; fleet; flotilla; march
Opposite Meaning: stagnation

chargeable (adjective) /ˈtʃɑr dʒə bəl/
Definition: Subject to a charge or an imposition of a fee or cost.
Example Sentence: "The hotel room service menu listed various chargeable items, including snacks and beverages."
Synonyms: assessable; billable; collectible; debitable; due; dutiable
Opposite Meaning: free

commission (verb) /kəˈmɪʃ ən/
Definition: To formally assign, authorize, or entrust someone, typically an individual or a group, with a specific task, responsibility, or project.
Example Sentence: "The city council will commission a study to evaluate the impact of traffic congestion."
Synonyms: appoint; assign; authorize; command; contract; delegate
Opposite Meaning: cancel

conditioned (adjective) /kuhn-dish-uhnd/
Definition: Having been modified, prepared, or influenced in a particular way.
Example Sentence: "The students' conditioned minds were primed to solve complex mathematical problems with ease."
Synonyms: acclimated; adapted; disciplined; educated; groomed; indoctrinated
Opposite Meaning: natural

consume (verb) /kənˈsum/
Definition: To ingest or use something, typically in the context of food, drink, or resources.
Example Sentence: "The forest fires consume acres of land, leaving devastation in their wake."
Synonyms: absorb; deplete; devour; drink; engross; exhaust
Opposite Meaning: conserve

context (noun) /ˈkɒntɛkst/
Definition: The circumstances, conditions, and environment that surround a particular event, statement, or piece of information.
Example Sentence: "She explained the context of the quote to help understand its meaning."
Synonyms: backdrop; background; circumstances; condition; environment; framework
Opposite Meaning: isolation

debase (verb) /dɪˈbeɪs/
Definition: To lower the quality, value, or dignity of something, often by corrupting or adulterating it in some way.
Example Sentence: "The artist refused to debase her craft by creating commercial work."
Synonyms: bastardize; cheapen; contaminate; corrupt; defile; degrade
Opposite Meaning: enhance

disagreement (noun) /ˌdɪs əˈgri mənt/
Definition: A state or instance of conflicting opinions, views, or positions between individuals or groups.
Example Sentence: "Their disagreement on the matter led to a temporary strain in their relationship."
Synonyms: argument; conflict; contention; difference; discord; dispute
Opposite Meaning: agreement

disconnected (adjective) /ˌdɪs kəˈnɛk tɪd/
Definition: Separate, disjointed, or lacking a coherent connection or continuity.
Example Sentence: "After moving to a new city, she felt disconnected from her old friends and familiar surroundings."
Synonyms: detached; disassociated; disengaged; disjoined; disjointed; disorganized
Opposite Meaning: connected

dull (adjective) /dʌl/
Definition: Lacking in interest, excitement, or stimulation
Example Sentence: "The lecture on the topic was so dull that many students fell asleep."
Synonyms: boring; drab; flat; insipid; lackluster; lifeless
Opposite Meaning: exciting

edacity (noun) /ɪˈdæs ɪ ti/
Definition: A quality or state of being excessively eager to consume or devour, especially in terms of food or resources.
Example Sentence: "His edacity for knowledge led him to devour books on various subjects."
Synonyms: appetite; avarice; craving; desirousness; eagerness; gluttony
Opposite Meaning: satiety

embed (verb) /ɛmˈbɛd/
Definition: To firmly or securely fix or insert something within another substance or structure.
Example Sentence: "The teacher wanted to embed the love of reading in her students."
Synonyms: bury; entrench; fix; imbed; immerse; implant
Opposite Meaning: extract

empirical (adjective) /ɛmˈpɪrɪk(ə)l/
Definition: Based on observation, experience, or evidence obtained through direct sensory perception or experimentation rather than relying solely on theory or speculation.
Example Sentence: "The study was based on empirical data collected in the field."
Synonyms: actual; direct; experiential; experimental; factual; observed
Opposite Meaning: theoretical

excess (noun) /ɪkˈsɛs/
Definition: An amount or quantity that surpasses what is considered necessary, appropriate, or desired.
Example Sentence: "The doctor warned him about the dangers of excess sugar in his diet."
Synonyms: abundance; extravagance; glut; overabundance; overflow; overkill
Opposite Meaning: deficiency

hurried (adjective) /ˈhɜr id/
Definition: Done or occurring quickly, often due to a sense of urgency or a need to complete a task or reach a destination promptly.
Example Sentence: "The hurried packing resulted in forgetting some essential items for the trip."
Synonyms: accelerated; brisk; expeditious; fast; hasty; immediate
Opposite Meaning: leisurely

immature (adjective) /ˈɪm əˈtʃʊər/
Definition: Characterized by a lack of emotional, intellectual, or social development, typically associated with younger individuals or those who have not fully matured.
Example Sentence: "The student's immature writing style indicated a need for further development in their language skills."
Synonyms: adolescent; callow; childish; inexperienced; infantile; juvenile
Opposite Meaning: mature

immersed (adjective) /ɪˈmɜrst/
Definition: Complete involvement or absorption in something, usually an activity, experience, or environment.
Example Sentence: "She was so immersed in her painting that she didn't notice the hours flying by."
Synonyms: absorbed; buried; captivated; consumed; engrossed; entranced
Opposite Meaning: detached

incapacitate (verb) /ˌɪnkəˈpasɪteɪt/
Definition: To disable or make someone unable to perform a certain action or function.
Example Sentence: "The injury would incapacitate him for the rest of the season."
Synonyms: attenuate; cripple; debilitate; disable; hinder; immobilize
Opposite Meaning: empower

indiscriminate (adjective) /ˌɪndɪˈskrɪmɪnət/
Definition: Something that is done at random or without careful judgement.
Example Sentence: "The indiscriminate bombing of the city caused widespread destruction."
Synonyms: aimless; chaotic; haphazard; miscellaneous; sweeping; unmethodical
Opposite Meaning: selective

invoke (verb) /ɪnˈvoʊk/
Definition: To call upon or summon a higher power, deity, or spiritual force for assistance, support, guidance, or protection.
Example Sentence: "The singer's rendition of the national anthem seemed to invoke a wave of patriotism."
Synonyms: activate; appeal; call; cite; employ; evoke
Opposite Meaning: ignore

love (noun) /lʌv/
Definition: An intense feeling of deep affection, fondness, or attachment towards someone or something.
Example Sentence: "Despite all obstacles, their love stood the test of time."
Synonyms: admiration; adoration; affection; ardor; attachment; devotion
Opposite Meaning: hatred

luxurious (adjective) /lʌgˈʒʊər i əs/
Definition: Characterized by elegance, opulence, comfort, and extravagance.
Example Sentence: "The hotel suite had a luxurious king-size bed and a marble bathroom."
Synonyms: deluxe; extravagant; fancy; grand; lavish; opulent
Opposite Meaning: spartan

malpractice (noun) /mælˈpræk tɪs/
Definition: The improper or negligent conduct of a professional, typically within a field such as medicine, law, or finance, where they breach the accepted standards of practice.
Example Sentence: "The nurse's malpractice in administering the wrong medication caused severe allergic reactions."
Synonyms: breach; error; fault; incompetence; misbehavior; misconduct
Opposite Meaning: proficiency

materialistic (adjective) /məˌtɪər i əˈlɪs tɪk/
Definition: Placing excessive value on material possessions, wealth, and worldly possessions.
Example Sentence: "The materialistic teenager constantly sought the latest designer brands to enhance their image."
Synonyms: acquisitive; avaricious; capitalist; consumerist; covetous; grasping
Opposite Meaning: spiritual

minor (adjective) /ˈmaɪ nər/
Definition: Of lesser importance, significance, or scale in comparison to something else.
Example Sentence: "The storm caused only minor damage to the roof."
Synonyms: insignificant; lesser; lower; modest; negligible; peripheral
Opposite Meaning: major

mischief (noun) /ˈmɪs tʃɪf/
Definition: Playful, mischievous, or harmful behavior that is intended to cause trouble, annoyance, or amusement.
Example Sentence: "The group of friends always found themselves getting into mischief during their adventures."
Synonyms: antics; capers; devilry; frolics; hijinks; naughtiness
Opposite Meaning: obedience

mishap (noun) /ˈmɪs hæp/
Definition: An unfortunate, often unexpected, and minor accident, mistake, or misfortune that occurs due to a momentary lapse in judgment, a lack of caution, or unforeseen circumstances.
Example Sentence: "The actor's mishap during the play caused an unexpected pause in the performance."
Synonyms: accident; blunder; error; incident; misadventure; misfortune
Opposite Meaning: fortune

murmur (noun) /ˈmɜr mər/
Definition: A soft, low, and indistinct sound or utterance.
Example Sentence: "The meeting room was filled with a low murmur of discussion among the attendees."
Synonyms: babble; buzz; drone; hum; mumble; rumble
Opposite Meaning: shout

nonconformist (noun) /ˌnɒn kənˈfɔr mɪst/
Definition: An individual who consciously chooses to deviate from established social norms, conventions, or expectations.
Example Sentence: "Clara's nonconformist attitude led her to pursue a career that defied societal expectations."
Synonyms: bohemian; dissenter; eccentric; freethinker; heretic; iconoclast
Opposite Meaning: conformist

obscenity (noun) /əbˈsɛn ɪ ti/
Definition: Something that is considered offensive, indecent, or morally objectionable, particularly in terms of explicit sexual content or language.
Example Sentence: "The comedian's jokes pushed the boundaries of obscenity, leaving some audience members uncomfortable."
Synonyms: crudity; filth; impropriety; indecency; indecorum; lewdness
Opposite Meaning: decency

offhand (adjective) /ˈɔfˈhænd/
Definition: Done or said without much thought, preparation, or consideration.
Example Sentence: "The speaker's offhand remark caused an awkward silence in the room."
Synonyms: ad-lib; casual; extemporaneous; haphazard; impromptu; improvisational
Opposite Meaning: deliberate

officialdom (noun) /əˈfɪʃ əl dəm/
Definition: The collective body or system of officials in a particular organization, government, or bureaucracy.
Example Sentence: "She decided to join the ranks of officialdom to have a direct impact on decision-making."
Synonyms: administration; apparatus; authorities; bureaucracy; establishment; government
Opposite Meaning: populace

omnipresence (noun) /ˌɒmnɪˈprɛzəns/
Definition: The quality or state of being present everywhere simultaneously.
Example Sentence: "The omnipresence of technology in our daily lives is undeniable."
Synonyms: boundlessness; everywhere; immensity; infinity; omniparity; pervasiveness
Opposite Meaning: absent

overhang (verb) /ˌoʊ vərˈhæŋ/
Definition: To project or extend beyond the edge or surface of something, typically in a horizontal or downward manner.
Example Sentence: "The tree branches overhang the picnic area, offering a natural canopy."
Synonyms: bulge; dangle; eclipse; extend; hang; jut
Opposite Meaning: recede

peak (noun) /pik/
Definition: The pointed or highest part of a mountain, hill, or any elevated area.
Example Sentence: "The musician's career reached its peak when her song soared to the top of the charts."
Synonyms: acme; apex; climax; crest; crown; culmination
Opposite Meaning: base

pernickety (adjective) /pəˈnɪkɪti/
Definition: Excessively fussy, particular, or demanding, often with small or insignificant details.
Example Sentence: "His pernickety nature made him a difficult person to work with."
Synonyms: choosy; demanding; exacting; fastidious; finicky; hairsplitting
Opposite Meaning: undemanding

phoenix (noun) /ˈfi nɪks/
Definition: A mythical creature often depicted as a large, magnificent bird with vibrant plumage and a long, graceful tail.
Example Sentence: "Legends speak of the phoenix rising from the ashes, symbolizing new beginnings."
Synonyms: fenghuang; firebird; immortality; rebirth; regeneration; renaissance
Opposite Meaning: common

polemical (adjective) /pəlemɪkəl/
Definition: Characterized by controversy, strong disagreement, or contentiousness.
Example Sentence: "Her article took a polemical stance on the controversial issue, inviting strong reactions."
Synonyms: argumentative; combative; confrontational; contentious; contradictory; controversial
Opposite Meaning: agreeable

postpone (verb) /poʊstˈpoʊn/
Definition: To delay or reschedule an event, activity, or task to a later time or date.
Example Sentence: "He decided to postpone his vacation until he finished his project."
Synonyms: adjourn; defer; delay; prolong; protract; reprieve
Opposite Meaning: advance

pounce (verb) /paʊns/
Definition: To seize or attack prey or a target with great speed and determination.
Example Sentence: "The spider will pounce on any insect that comes near its web."
Synonyms: ambush; assault; attack; dart; dive; grab
Opposite Meaning: retreat

prize (noun) /praɪz/
Definition: A reward or recognition given to someone as a result of their achievement, victory, or exceptional performance.
Example Sentence: "The essay contest offered a scholarship prize for the winning entry."
Synonyms: accolade; award; bounty; distinction; honor; jackpot
Opposite Meaning: penalty

promenade (noun) /ˌprɒməˈnɑːd/
Definition: A public walkway, typically along a waterfront or in a park, that is intended for leisurely strolls or recreation.
Example Sentence: "The city's main promenade was lined with street performers and food vendors."
Synonyms: avenue; boardwalk; boulevard; embankment; pier; quay
Opposite Meaning: alley

rarefied (adjective) /ˈrɛər əˌfaɪd/
Definition: Characterized by a high degree of refinement, sophistication, or exclusivity.
Example Sentence: "The CEO lived a rarefied lifestyle, with access to private jets and luxury yachts."
Synonyms: elite; exclusive; privileged; rare; refined; sophisticated
Opposite Meaning: common

remains (noun) /rɪˈmeɪnz/
Definition: What remains after a process, event, or action has taken place.
Example Sentence: "The archaeologists discovered ancient remains at the excavation site."
Synonyms: ashes; carcass; debris; fragments; leftovers; relics
Opposite Meaning: entirety

remnant (noun) /ˈrɛmnənt/
Definition: A small remaining part or fragment of something that was once whole or larger.
Example Sentence: "The archaeologist found a remnant of ancient pottery in the ruins."
Synonyms: dregs; fragment; leftover; piece; remainder; residue
Opposite Meaning: entirety

revenant (noun) /ˈrɛv ə nənt/
Definition: A supernatural or mythical being, often depicted as a ghost, spirit, or specter, that has returned from the dead.
Example Sentence: "The legend spoke of a revenant seeking justice for a past betrayal."
Synonyms: apparition; ghost; haunt; phantasm; phantom; poltergeist
Opposite Meaning: living

scarcity (noun) /ˈskɛər sɪ ti/
Definition: A state or condition of limited availability or insufficient supply of a particular resource, commodity, or item.
Example Sentence: "The scarcity of affordable housing has led to a homelessness crisis in many major cities."
Synonyms: absence; dearth; deficiency; inadequacy; insufficiency; lack
Opposite Meaning: abundance

scrounge (verb) /skraʊndʒ/
Definition: To obtain or acquire something, often in a resourceful or opportunistic manner, especially when faced with limited or scarce options.
Example Sentence: "My brother would always scrounge for snacks in the kitchen late at night."
Synonyms: beg; bum; cadge; forage; freeload; glean
Opposite Meaning: donate

slit (noun) /slɪt/
Definition: A narrow, elongated opening or cut in a surface or material.
Example Sentence: "The cat squeezed through a narrow slit in the fence to explore the garden."
Synonyms: aperture; break; chink; crevice; cut; fissure
Opposite Meaning: closure

snap (adjective) /snæp/
Definition: Done or achieved quickly, easily, and with minimal effort.
Example Sentence: "With a snap decision, she chose the red dress for the party."
Synonyms: brisk; expeditious; fast; fleet; hasty; nimble
Opposite Meaning: slow

spellbound (adjective) /ˈspɛlˌbaʊnd/
Definition: Captivated, entranced, or deeply engrossed by something or someone.
Example Sentence: "The magician's tricks left the audience spellbound and in awe."
Synonyms: absorbed; awestruck; bewitched; captivated; enchanted; engrossed
Opposite Meaning: uninterested

stenographer (noun) /stəˈnɒg rə fər/
Definition: An individual who specializes in the art and skill of shorthand writing.
Example Sentence: "The stenographer diligently recorded every word spoken during the court proceedings."
Synonyms: amanuensis; copyist; dictationist; documentalist; notetaker; recorder
Opposite Meaning: speaker

stern (adjective) /stɜrn/
Definition: Displaying seriousness, strictness, or firmness.
Example Sentence: "His stern gaze made it clear that he was not to be taken lightly."
Synonyms: austere; authoritative; firm; harsh; inflexible; resolute
Opposite Meaning: lenient

stir (verb) /stɜr/
Definition: To physically agitate or mix.
Example Sentence: "The motivational speech did much to stir the crowd’s enthusiasm."
Synonyms: agitate; arouse; awaken; blend; churn; disturb
Opposite Meaning: settle

stun (verb) /stʌn/
Definition: To temporarily render someone or something unconscious, disoriented, or overwhelmed, often as a result of a sudden, intense, or unexpected event or action.
Example Sentence: "His sudden outburst was enough to stun the entire room into silence."
Synonyms: amaze; astonish; astound; bewilder; dazzle; flabbergast
Opposite Meaning: enliven

Stygian (adjective) /ˈstɪʤiən/
Definition: Dark, gloomy, or mysterious, often with connotations of the underworld or the afterlife.
Example Sentence: "The Stygian darkness of the cave was unsettling."
Synonyms: clouded; dingy; foggy; hellish; infernal; misty
Opposite Meaning: bright

subaquatic (adjective) /ˌsʌb əˈkwæt ɪk/
Definition: Pertaining to or existing below the surface of water.
Example Sentence: "The subaquatic world is teeming with colorful coral reefs and exotic fish."
Synonyms: aquatic; marine; subaqueous; submarine; submergible; submersed
Opposite Meaning: terrestrial

suffrage (noun) /ˈsʌfrɪdʒ/
Definition: The right or privilege to vote in political elections, particularly in the context of a democratic system.
Example Sentence: "The 19th Amendment granted women suffrage in the United States."
Synonyms: assent; ballot; consent; democracy; franchise; participation
Opposite Meaning: disenfranchisement

synchronize (verb) /ˈsɪŋ krəˌnaɪz/
Definition: To coordinate or align activities, events, or processes in such a way that they occur simultaneously or in harmony with each other.
Example Sentence: "The dancers practiced hard to synchronize their steps to the music."
Synonyms: adjust; align; blend; coincide; coordinate; harmonize
Opposite Meaning: desynchronize

trash (noun) /træʃ/
Definition: Discarded or unwanted materials that are considered worthless, useless, or no longer needed.
Example Sentence: "The city streets were littered with trash after the parade."
Synonyms: debris; detritus; discard; dross; garbage; junk
Opposite Meaning: treasure

twaddle (noun) /ˈtwɒd l/
Definition: Foolish, trivial, or nonsensical talk or writing. It represents empty or meaningless words or ideas that lack substance or intellectual value.
Example Sentence: "Her speech was full of empty twaddle and lacked any real substance."
Synonyms: babble; balderdash; blather; bunk; claptrap; drivel
Opposite Meaning: wisdom

uncertain (adjective) /ʌnˈsɜr tn/
Definition: Doubt, hesitation, or a lack of confidence about something.
Example Sentence: "She felt uncertain about accepting the job offer, as it meant relocating to a new city."
Synonyms: ambiguous; doubtful; dubious; hesitant; indecisive; tentative
Opposite Meaning: certain

unimaginative (adjective) /ˌʌnɪˈmædʒɪnətɪv/
Definition: Lacking creativity, originality, or the ability to think outside the box.
Example Sentence: "The students were disheartened by the unimaginative assignments given by their teacher."
Synonyms: banal; conventional; dull; lackluster; monotonous; mundane
Opposite Meaning: imaginative

unleash (verb) /ʌnˈliʃ/
Definition: To release, set free, or allow something to emerge or operate with full force or intensity.
Example Sentence: "The engineers plan to unleash the full potential of the new technology."
Synonyms: discharge; emancipate; free; liberate; loose; release
Opposite Meaning: restrain

untidy (adjective) /ʌnˈtaɪ di/
Definition: Characterized by disorder, lack of organization, or a lack of cleanliness.
Example Sentence: "Despite her best efforts, her hair remained untidy and unruly, refusing to be tamed."
Synonyms: chaotic; cluttered; disarrayed; disheveled; disordered; haphazard
Opposite Meaning: neat

upright (adjective) /ˈʌpˌraɪt/
Definition: Having a vertical or erect position or orientation.
Example Sentence: "She is known in the community for her upright character and honesty."
Synonyms: decent; erect; ethical; honorable; just; moral
Opposite Meaning: horizontal

versed (adjective) /vɜrst/
Definition: Knowledgeable, experienced, or skilled in a particular field or subject.
Example Sentence: "She is well versed in classical literature and can discuss various authors and their works."
Synonyms: adept; competent; experienced; expert; informed; knowledgeable
Opposite Meaning: ignorant