English Antonyms for Success and Achievement Vocabulary Words – Online Quiz!

acclaim (noun) /əˈkleɪm/
Definition: Enthusiastic approval or praise given to a person, group, or work of art.
Antonyms quiz: Choose the opposite meaning of acclaim.
Options: adulation; applause; commendation; criticism
Answer: criticism
Example sentence: "The film garnered international acclaim and won several awards."

accomplish (verb) /əˈkɒm plɪʃ/
Definition: To successfully complete or achieve a task, goal, or objective.
Antonyms quiz: Choose the opposite meaning of accomplish.
Options: achieve; attain; complete; fail
Answer: fail
Example sentence: "We must set clear goals to accomplish our mission."

aspirant (adjective) /əˈspʌɪər(ə)nt/
Definition: Possessing a strong and determined desire to achieve a specific goal, position, or level of success.
Antonyms quiz: Choose the opposite meaning of aspirant.
Options: applicant; candidate; competitor; complacent
Answer: complacent
Example sentence: "She enrolled in the prestigious university as an aspirant scientist, aiming to contribute to groundbreaking research."

catalyst (noun) /ˈkatəlɪst/
Definition: Any person or thing that triggers or sparks a significant event or change, often by serving as a facilitator or accelerator.
Antonyms quiz: Choose the opposite meaning of catalyst.
Options: determinant; driver; generator; impediment
Answer: impediment
Example sentence: "A trusted mentor can be a powerful catalyst for success."

cum-laude (adverb) /ˌkʌm ˈlaʊdeɪ/
Definition: Having graduated from an educational institution with distinction.
Antonyms quiz: Choose the opposite meaning of cum-laude.
Options: commendably; creditably; distinction; ordinarily
Answer: ordinarily
Example sentence: "She worked tirelessly throughout her academic career and graduated cum-laude."

effective (adjective) /ɪˈfɛk tɪv/
Definition: Successfully achieving an intended purpose or desired outcome.
Antonyms quiz: Choose the opposite meaning of effective.
Options: capable; competent; efficient; ineffective
Answer: ineffective
Example sentence: "The medicine proved to be highly effective in treating the symptoms."

efficacy (noun) /ˈɛfɪkəsi/
Definition: The ability or capacity of something, typically a method, treatment, or intervention, to produce the desired or intended results or effects.
Antonyms quiz: Choose the opposite meaning of efficacy.
Options: adequacy; capability; competence; ineffectiveness
Answer: ineffectiveness
Example sentence: "The study revealed the efficacy of exercise in reducing stress levels."

feat (noun) /fiːt/
Definition: An impressive or remarkable achievement, particularly one that requires skill, effort, or courage.
Antonyms quiz: Choose the opposite meaning of feat.
Options: accomplishment; achievement; attainment; failure
Answer: failure
Example sentence: "The scientist's groundbreaking discovery was a remarkable feat of innovation."

felicitous (adjective) /fɪˈlɪsɪtəs/
Definition: Well-suited, appropriate, or skillfully chosen in a given context.
Antonyms quiz: Choose the opposite meaning of felicitous.
Options: applicable; apposite; apropos; inappropriate
Answer: inappropriate
Example sentence: "His felicitous choice of words always made his speeches impactful."

flourish (verb) /ˈflʌrɪʃ/
Definition: To thrive, prosper, or grow vigorously, often characterized by a state of health, success, or abundance.
Antonyms quiz: Choose the opposite meaning of flourish.
Options: advance; bloom; blossom; fail
Answer: fail
Example sentence: "With determination and hard work, her career started to flourish."

fruitful (adjective) /ˈfrut fəl/
Definition: Producing or yielding positive and desirable results, outcomes, or benefits.
Antonyms quiz: Choose the opposite meaning of fruitful.
Options: abundant; advantageous; beneficial; barren
Answer: barren
Example sentence: "The fruitful discussion among the board members resulted in a unanimous decision."

fruition (noun) /frʊˈɪʃn/
Definition: The realization or attainment of a long-anticipated goal, plan, or desire, often marking the point at which something is fully achieved or completed.
Antonyms quiz: Choose the opposite meaning of fruition.
Options: accomplishment; achievement; actualization; failure
Answer: failure
Example sentence: "After years of planning, the wedding was a beautiful fruition."

illustrious (adjective) /ɪˈlʌstrɪəs/
Definition: Famous, respected, or renowned for past achievements or notable qualities.
Antonyms quiz: Choose the opposite meaning of illustrious.
Options: brilliant; celebrated; distinguished; obscure
Answer: obscure
Example sentence: "The museum displayed a collection of illustrious paintings by famous artists."

instrumental (adjective) /ˌɪnstrʊˈmɛntl/
Definition: Referring to the critical role that something or someone plays in achieving a specific outcome or result.
Antonyms quiz: Choose the opposite meaning of instrumental.
Options: crucial; decisive; essential; insignificant
Answer: insignificant
Example sentence: "The scientist's research was instrumental in the breakthrough."

leading (adjective) /ˈli dɪŋ/
Definition: In a position of prominence, superiority, or influence within a particular context or field.
Antonyms quiz: Choose the opposite meaning of leading.
Options: chief; dominant; eminent; trailing
Answer: trailing
Example sentence: "The leading actress delivered a captivating performance in the play."

milestone (noun) /ˈmʌɪlstəʊn/
Definition: A significant event or achievement that marks a specific point in time or progress towards a particular goal.
Antonyms quiz: Choose the opposite meaning of milestone.
Options: accomplishment; achievement; benchmark; triviality
Answer: triviality
Example sentence: "Getting her driver's license was a significant milestone in her life."

momentous (adjective) /məˈmɛntəs/
Definition: Of significant importance, marked by its far-reaching consequences or potential to bring about profound change.
Antonyms quiz: Choose the opposite meaning of momentous.
Options: consequential; eventful; fateful; trivial
Answer: trivial
Example sentence: "The signing of the peace treaty was a momentous achievement."

optimal (adjective) /ˈɒp tə məl/
Definition: Most favorable, advantageous, or ideal in terms of achieving the best possible outcome or result.
Antonyms quiz: Choose the opposite meaning of optimal.
Options: best; excellent; finest; worst
Answer: worst
Example sentence: "The doctor prescribed a specific dosage for the optimal effect of the medication."

optimum (noun) /ˈɒp tə məm/
Definition: The most favorable or advantageous condition or level that can be achieved.
Antonyms quiz: Choose the opposite meaning of optimum.
Options: acme; best; ideal; worst
Answer: worst
Example sentence: "The project team worked together to find the optimum solution to the complex problem."

paragon (noun) /ˈparəɡ(ə)n/
Definition: A person or thing that is regarded as the embodiment of excellence, perfection, or an ideal standard in a particular category or quality.
Antonyms quiz: Choose the opposite meaning of paragon.
Options: archetype; embodiment; epitome; flaw
Answer: flaw
Example sentence: "Einstein is often seen as a paragon of genius in physics."

peerless (adjective) /ˈpɪər lɪs/
Definition: Unrivaled or unparalleled in excellence, superiority, or importance.
Antonyms quiz: Choose the opposite meaning of peerless.
Options: consummate; exceptional; incomparable; ordinary
Answer: ordinary
Example sentence: "He was a peerless leader, inspiring everyone around him."

pinnacle (noun) /ˈpɪnɪkl/
Definition: The highest point or peak of something, often used to describe a culminating moment of achievement or success.
Antonyms quiz: Choose the opposite meaning of pinnacle.
Options: acme; apex; apogee; nadir
Answer: nadir
Example sentence: "The skyscraper's rooftop offered views from the pinnacle."

pioneer (noun) /ˌpʌɪəˈnɪə/
Definition: An individual or group that plays a fundamental and trailblazing role in initiating new ideas, concepts, technologies, or endeavors in a particular field or area.
Antonyms quiz: Choose the opposite meaning of pioneer.
Options: explorer; founder; frontiersman; follower
Answer: follower
Example sentence: "Sacagawea, a Shoshone woman, played a crucial role as a pioneer during the Lewis and Clark expedition."

preeminent (adjective) /priːˈɛmɪnənt/
Definition: Standing out as the foremost, most distinguished, or most superior in a particular field, category, or domain.
Antonyms quiz: Choose the opposite meaning of preeminent.
Options: chief; consummate; distinguished; inferior
Answer: inferior
Example sentence: "The company is one of the preeminent players in the industry."

prevail (verb) /prɪˈveɪl/
Definition: To be successful in overcoming resistance or opposition, or to gain victory or triumph in a situation.
Antonyms quiz: Choose the opposite meaning of prevail.
Options: conquer; domineer; overcome; fail
Answer: fail
Example sentence: "Let the truth prevail no matter the obstacles."

prominent (adjective) /ˈprɒmɪnənt/
Definition: Easily noticeable, conspicuous, or widely recognized due to its distinctiveness, importance, or visibility.
Antonyms quiz: Choose the opposite meaning of prominent.
Options: distinguished; esteemed; famed; obscure
Answer: obscure
Example sentence: "He played a prominent part in the election campaign."

prosper (verb) /ˈprɒs pər/
Definition: To thrive, flourish, and achieve success in various aspects of life.
Antonyms quiz: Choose the opposite meaning of prosper.
Options: advance; bloom; boom; fail
Answer: fail
Example sentence: "The agricultural sector thrived, allowing farmers to prosper and contribute to food security in the region."

Pyrrhic (adjective) /ˈpɪr ɪk/
Definition: Coming at a high cost or entailing substantial losses, to the point where the gains achieved are nearly outweighed by the negative consequences.
Antonyms quiz: Choose the opposite meaning of Pyrrhic.
Options: costly; counterproductive; disastrous; beneficial
Answer: beneficial
Example sentence: "Winning the legal battle proved Pyrrhic due to mounting legal fees."

sterling (adjective) /ˈstəːlɪŋ/
Definition: Of the highest quality, excellence, or purity, often with a strong implication of being trustworthy and reliable.
Antonyms quiz: Choose the opposite meaning of sterling.
Options: fabulous; fantastic; magnificent; poor
Answer: poor
Example sentence: "The athlete's sterling record was unmatched in the sport."

strive (verb) /straɪv/
Definition: To make great efforts or to work hard towards a particular goal, objective or outcome.
Antonyms quiz: Choose the opposite meaning of strive.
Options: attempt; compete; contend; quit
Answer: quit
Example sentence: "He strives daily to achieve his fitness goals through rigorous workouts."

successful (adjective) /səkˈsɛs fəl/
Definition: Achieving a desired outcome or accomplishing one's goals with favorable results.
Antonyms quiz: Choose the opposite meaning of successful.
Options: accomplished; effective; flourishing; unsuccessful
Answer: unsuccessful
Example sentence: "The athlete's hard work and dedication paid off with a successful victory."

surmount (verb) /səˈmaʊnt/
Definition: To overcome or to successfully deal with a challenge, obstacle or difficulty.
Antonyms quiz: Choose the opposite meaning of surmount.
Options: conquer; defeat; exceed; succumb
Answer: succumb
Example sentence: "They managed to surmount their differences and find common ground."

surpass (verb) /sərˈpæs/
Definition: To exceed or go beyond a particular standard, limit, expectation, or achievement.
Antonyms quiz: Choose the opposite meaning of surpass.
Options: beat; best; exceed; fall behind
Answer: fall behind
Example sentence: "The company's commitment to innovation allows them to surpass customer expectations."

synergy (noun) /ˈsɪnədʒi/
Definition: The production of something greater than the sum of its individual parts.
Antonyms quiz: Choose the opposite meaning of synergy.
Options: alliance; collaboration; coordination; discord
Answer: discord
Example sentence: "One could not deny the synergy between the musicians as their harmony filled the air."

thriving (adjective) /ˈθraɪ vɪŋ/
Definition: Great success, growth, or prosperity.
Antonyms quiz: Choose the opposite meaning of thriving.
Options: blooming; booming; burgeoning; failing
Answer: failing
Example sentence: "In the midst of the bustling city, there was a thriving community of artists and musicians."

triumph (noun) /ˈtraɪ əmf/
Definition: The experience or state of achieving a great victory, success, or accomplishment.
Antonyms quiz: Choose the opposite meaning of triumph.
Options: accomplishment; achievement; attainment; defeat
Answer: defeat
Example sentence: "The team celebrated their triumph on the football field with cheers and high-fives."

unmitigated (adjective) /ʌnˈmɪtɪɡeɪtɪd/
Definition: Complete, absolute, or without any qualifications or limitations.
Antonyms quiz: Choose the opposite meaning of unmitigated.
Options: arrant; outright; pure; mitigated
Answer: mitigated
Example sentence: "The film's unmitigated success at the box office surprised even the most optimistic critics."

unsurpassed (adjective) /ˌʌnsəˈpɑːst/
Definition: Unmatched, unparalleled, or unequaled in terms of its quality, performance, or achievement.
Antonyms quiz: Choose the opposite meaning of unsurpassed.
Options: incomparable; inimitable; matchless; inferior
Answer: inferior
Example sentence: "The chef's culinary creations were simply unsurpassed, earning him a coveted Michelin star."