English Antonyms for Certainty and Conviction Vocabulary Words – Online Quiz!

absolute (adjective) /ˈabsəluːt/
Definition: Complete, unconditional, and unrestricted by any external factors or limitations.
Antonyms quiz: Choose the opposite meaning of absolute.
Options: outright; sheer; thorough; partial
Answer: partial
Example sentence: "The scientist was convinced of the absolute truth of her theory."

ascertain (verb) /ˌasəˈteɪn/
Definition: To determine, discover, or find out with certainty or through investigation.
Antonyms quiz: Choose the opposite meaning of ascertain.
Options: confirm; detect; determine; guess
Answer: guess
Example sentence: "The doctor sought to ascertain the patient's condition."

authentic (adjective) /ɔːˈθɛntɪk/
Definition: True to its original form, unaltered, and genuinely representative of its source or nature.
Antonyms quiz: Choose the opposite meaning of authentic.
Options: bona-fide; certified; faithful; fake
Answer: fake
Example sentence: "The restaurant served authentic Italian cuisine."

certified (adjective) /ˈsɜr təˌfaɪd/
Definition: Having been officially recognized, verified, or confirmed as meeting specific standards or requirements.
Antonyms quiz: Choose the opposite meaning of certified.
Options: accredited; approved; attested; uncertified
Answer: uncertified
Example sentence: "The restaurant boasts a certified organic menu."

claim (verb) /kleɪm/
Definition: To assert or state something as true, factual, or rightful.
Antonyms quiz: Choose the opposite meaning of claim.
Options: affirm; allege; argue; deny
Answer: deny
Example sentence: "The scientist will claim credit for the groundbreaking discovery."

cocksure (adjective) /kɒkʃʊəʳ/
Definition: Self-assured and overly confident in one's own abilities or opinions.
Antonyms quiz: Choose the opposite meaning of cocksure.
Options: arrogant; audacious; bold; uncertain
Answer: uncertain
Example sentence: "Her cocksure attitude rubbed her teammates the wrong way."

confute (verb) /kənˈfjuːt/
Definition: To prove a statement, argument, or theory to be false or incorrect through evidence or logical argumentation.
Antonyms quiz: Choose the opposite meaning of confute.
Options: contradict; controvert; debunk; confirm
Answer: confirm
Example sentence: "Her research aims to confute long-standing misconceptions."

conscience (noun) /ˈkɒnʃns/
Definition: An inner sense of what is right or wrong that helps to guide a person's actions and decisions.
Antonyms quiz: Choose the opposite meaning of conscience.
Options: character; ethics; gut; indifference
Answer: indifference
Example sentence: "She followed her conscience, even when it meant standing alone."

conviction (noun) /kənˈvɪkʃᵊn/
Definition: A strong belief or opinion that one holds about a particular topic, issue, or idea.
Antonyms quiz: Choose the opposite meaning of conviction.
Options: assurance; certainty; confidence; doubt
Answer: doubt
Example sentence: "The judge's stern expression conveyed his sense of conviction in delivering justice."

credible (adjective) /ˈkrɛdəbəl/
Definition: Trustworthy, believable, or deserving of confidence and acceptance.
Antonyms quiz: Choose the opposite meaning of credible.
Options: believable; compelling; conceivable; dubious
Answer: dubious
Example sentence: "The news report was from a credible news outlet."

decisive (adjective) /dɪˈsaɪsɪv/
Definition: Demonstrating the ability to make clear and prompt decisions, often leading to resolute actions or conclusive outcomes.
Antonyms quiz: Choose the opposite meaning of decisive.
Options: certain; conclusive; definitive; hesitant
Answer: hesitant
Example sentence: "A decisive moment in history altered the course of nations."

deontology (noun) /ˌdiːɒnˈtɒləʤi/
Definition: A branch of ethics that focuses on the inherent morality of actions, emphasizing duty and adherence to rules over outcomes or consequences.
Antonyms quiz: Choose the opposite meaning of deontology.
Options: duty; ethics; Kantianism; consequentialism
Answer: consequentialism
Example sentence: "In deontology, lying is inherently wrong, regardless of outcomes."

dependable (adjective) /dɪˈpɛn də bəl/
Definition: Relied upon or trusted to perform consistently and reliably.
Antonyms quiz: Choose the opposite meaning of dependable.
Options: certain; consistent; constant; unreliable
Answer: unreliable
Example sentence: "She is known for her dependable nature and ability to handle any challenge."

destiny (noun) /destɪni/
Definition: The predetermined or inevitable course of events in a person's life or the unfolding of circumstances that shape their future.
Antonyms quiz: Choose the opposite meaning of destiny.
Options: chance; doom; fate; chance
Answer: chance
Example sentence: "Many ancient cultures believed in the power of destiny, a force that governed their lives."

dubious (adjective) /ˈdjuːbɪəs/
Definition: Uncertain or questionable in nature, often giving rise to suspicion, doubt, or hesitation.
Antonyms quiz: Choose the opposite meaning of dubious.
Options: ambiguous; distrustful; doubtful; certain
Answer: certain
Example sentence: "The quality of the product was met with dubious reviews."

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."

eminent (adjective) /ˈɛmɪnənt/
Definition: Famous, distinguished, or prominent within a particular field or profession.
Antonyms quiz: Choose the opposite meaning of eminent.
Options: celebrated; esteemed; famed; unknown
Answer: unknown
Example sentence: "He is an eminant clinician with regular appeances on television."

entrenched (adjective) /ɛnˈtrɛntʃt/
Definition: Firmly established, deeply rooted, or ingrained in a particular position, belief, or system.
Antonyms quiz: Choose the opposite meaning of entrenched.
Options: embedded; established; fixed; superficial
Answer: superficial
Example sentence: "The family business had an entrenched position in the local market."

evident (adjective) /ˈɛvɪd(ə)nt/
Definition: Clearly visible, obvious, or apparent.
Antonyms quiz: Choose the opposite meaning of evident.
Options: blatant; conspicuous; noticeable; unclear
Answer: unclear
Example sentence: "The benefits of the program were evident in the results."

fate (noun) /feɪt/
Definition: The supposed predetermined outcome or course of events that one believes is beyond human control.
Antonyms quiz: Choose the opposite meaning of fate.
Options: chance; destiny; doom; chance
Answer: chance
Example sentence: "The fortune teller claimed to have the ability to predict people's fates."

guarantee (noun) /ˌgær ənˈti/
Definition: A formal assurance or promise made by one party to another, assuring that a particular outcome, result, or condition will be fulfilled or provided.
Antonyms quiz: Choose the opposite meaning of guarantee.
Options: assurance; backing; bond; risk
Answer: risk
Example sentence: "The guarantee of on-time delivery reassured the customer that their package would arrive as promised."

hallmark (noun) /ˈhɔlˌmɑrk/
Definition: A distinguishing feature or characteristic that sets something apart and serves as a mark of quality, authenticity, or excellence.
Antonyms quiz: Choose the opposite meaning of hallmark.
Options: attribute; badge; characteristic; flaw
Answer: flaw
Example sentence: "The company's commitment to customer satisfaction is a hallmark of their business."

immaculate (adjective) /ɪˈmæk yə lɪt/
Definition: Completely free from any flaws or blemishes, both literally and figuratively.
Antonyms quiz: Choose the opposite meaning of immaculate.
Options: clean; faultless; flawless; dirty
Answer: dirty
Example sentence: "The garden was meticulously cared for, with rows of immaculate flowers in perfect bloom."

imminent (adjective) /ˈɪmɪnənt/
Definition: About to happen or occur in the very near future, often suggesting that it is impending or about to take place at any moment.
Antonyms quiz: Choose the opposite meaning of imminent.
Options: approaching; coming; forthcoming; distant
Answer: distant
Example sentence: "The news of the impending hurricane caused a sense of imminent fear among the coastal residents."

immune (adjective) /ɪˈmyun/
Definition: Resistant or protected against a particular disease, pathogen, or harmful substance.
Antonyms quiz: Choose the opposite meaning of immune.
Options: defended; fortified; impervious; susceptible
Answer: susceptible
Example sentence: "Regular exercise can boost your immune response to infections."

immunity (noun) /ɪˈmyu nɪ ti/
Definition: The state or condition of being immune, which implies having a heightened resistance or protection against a particular disease, infection, or harmful substance.
Antonyms quiz: Choose the opposite meaning of immunity.
Options: defense; exemption; fortification; susceptibility
Answer: susceptibility
Example sentence: "Some people have natural immunity to certain viruses."

inarguable (adjective) /ɪnˈɑr gyu ə bəl/
Definition: Beyond dispute, or unquestionable.
Antonyms quiz: Choose the opposite meaning of inarguable.
Options: absolute; certain; clear; disputable
Answer: disputable
Example sentence: "The law's efficacy was inarguable, reducing crime significantly."

incontrovertible (adjective) /ˌɪnkɒntrəˈvəːtɪb(ə)l/
Definition: Absolutely undeniable and beyond dispute or controversy.
Antonyms quiz: Choose the opposite meaning of incontrovertible.
Options: absolute; certain; clear; debatable
Answer: debatable
Example sentence: "The DNA evidence provided an incontrovertible link to the crime scene."

indeed (adverb) /ɪnˈdid/
Definition: To emphasize or confirm the truth, accuracy, or validity of a statement or assertion.
Antonyms quiz: Choose the opposite meaning of indeed.
Options: absolutely; assuredly; certainly; doubtfully
Answer: doubtfully
Example sentence: "The movie we watched was indeed the best one I've seen this year."

infallible (adjective) /ɪnˈfalɪbl/
Definition: Incapable of making mistakes or errors, and considered completely trustworthy and flawless in action or judgment.
Antonyms quiz: Choose the opposite meaning of infallible.
Options: accurate; faultless; flawless; fallible
Answer: fallible
Example sentence: "Working in a hospital revealed that doctors are far from infallible."

integrity (noun) /ɪnˈtɛɡrɪti/
Definition: The quality of being honest, truthful and having strong moral principles.
Antonyms quiz: Choose the opposite meaning of integrity.
Options: honor; principle; probity; dishonesty
Answer: dishonesty
Example sentence: "She always conducts herself with the utmost integrity in her professional life."

invariably (adverb) /ɪnˈvɛːrɪəbli/
Definition: Occurring in every case or on every occasion without exception.
Antonyms quiz: Choose the opposite meaning of invariably.
Options: commonly; consistently; habitually; sometimes
Answer: sometimes
Example sentence: "The baby invariably cries when it's time to go to bed."

ipso-facto (adverb) /ˌɪpsəʊ ˈfaktəʊ/
Definition: To indicate that something is evidently true without the need for further proof or explanation.
Antonyms quiz: Choose the opposite meaning of ipso-facto.
Options: automatically; consequently; definitively; debatable
Answer: debatable
Example sentence: "The CEO's resignation ipso-facto triggered a search for a new leader."

irrefutable (adjective) /ˌɪrɪˈfjuːtəbl/
Definition: Absolutely indisputable, beyond any doubt or argument, and impossible to refute or contradict.
Antonyms quiz: Choose the opposite meaning of irrefutable.
Options: absolute; certain; clear; disputable
Answer: disputable
Example sentence: "His confession and the eyewitness testimony made the case against him irrefutable."

legitimate (adjective) /lɪˈdʒɪtɪmət/
Definition: Lawful, valid, and in accordance with accepted rules, regulations, or standards.
Antonyms quiz: Choose the opposite meaning of legitimate.
Options: authentic; authorized; kosher; unlawful
Answer: unlawful
Example sentence: "The contract was deemed legitimate by all parties involved."

nirvana (noun) /nɪəˈvɑːnə/
Definition: A concept in Buddhism that refers to the ultimate spiritual goal of achieving a state of enlightenment or liberation from the cycle of rebirth.
Antonyms quiz: Choose the opposite meaning of nirvana.
Options: awakening; bliss; ecstasy; turmoil
Answer: turmoil
Example sentence: "The musician's performance transported the audience to a state of musical nirvana."

obdurate (adjective) /ˈɒbdjʊrət/
Definition: Stubbornly resistant to change, persuasion, or moral influence, often displaying a persistent and unyielding attitude.
Antonyms quiz: Choose the opposite meaning of obdurate.
Options: adamant; determined; dogged; flexible
Answer: flexible
Example sentence: "The company's obdurate stance on the issue led to a prolonged labor strike."

patently (adverb) /ˈpeɪtntli/
Definition: Evident or unmistakably clear, often in a way that requires no further explanation or proof.
Antonyms quiz: Choose the opposite meaning of patently.
Options: apparently; distinctly; evidently; obscurely
Answer: obscurely
Example sentence: "The candidate's qualifications were patently superior."

probity (noun) /ˈprəʊbəti/
Definition: The quality or state of having strong moral principles and integrity in one's actions and character.
Antonyms quiz: Choose the opposite meaning of probity.
Options: ethics; goodness; honor; dishonesty
Answer: dishonesty
Example sentence: "In leadership, probity is as valuable as competence."

radical (adjective) /ˈradɪkl/
Definition: Characterized by a departure from established norms, traditions, or conventional beliefs, often in a fundamental or extreme way.
Antonyms quiz: Choose the opposite meaning of radical.
Options: draconian; drastic; excessive; conservative
Answer: conservative
Example sentence: "The invention of the internet brought about a radical transformation in communication."

realize (verb) /ˈri əˌlaɪz/
Definition: To become aware of something, or to understand it fully.
Antonyms quiz: Choose the opposite meaning of realize.
Options: acknowledge; appreciate; apprehend; overlook
Answer: overlook
Example sentence: "He paused for a moment, trying to realize the magnitude of his achievement."

refer (verb) /rɪˈfɜr/
Definition: To direct someone's attention or direct them to a source of information, a person, or a specific place for further guidance, clarification, or resolution.
Antonyms quiz: Choose the opposite meaning of refer.
Options: allude; attribute; cite; confuse
Answer: confuse
Example sentence: "I will refer your question to the appropriate department."

righteous (adjective) /ˈraɪʧəs/
Definition: Morally upright, just, virtuous, and in alignment with a strong sense of what is morally or ethically right.
Antonyms quiz: Choose the opposite meaning of righteous.
Options: ethical; fair; good; immoral
Answer: immoral
Example sentence: "A righteous leader inspires trust and loyalty among their followers."

scruples (noun) /ˈskruːp(ə)l/
Definition: Moral or ethical principles that guide a person's behavior and decision-making.
Antonyms quiz: Choose the opposite meaning of scruples.
Options: compunction; conscience; ethics; unscrupulousness
Answer: unscrupulousness
Example sentence: "Despite his financial troubles, he refused to compromise his scruples."

secure (adjective) /sɪˈkyʊər/
Definition: Safe, protected, or free from danger, risk, or threat.
Antonyms quiz: Choose the opposite meaning of secure.
Options: assured; certain; defended; vulnerable
Answer: vulnerable
Example sentence: "The child held onto their parent's hand for a secure feeling in the crowded market."

serious (adjective) /ˈsɪər i əs/
Definition: Significant, important, or of a grave nature.
Antonyms quiz: Choose the opposite meaning of serious.
Options: critical; crucial; earnest; frivolous
Answer: frivolous
Example sentence: "It's time to have a serious conversation about our future plans."

stipulate (verb) /ˈstɪpjʊleɪt/
Definition: To specify, demand, or require certain conditions, terms, or provisions as part of an agreement, contract, or arrangement.
Antonyms quiz: Choose the opposite meaning of stipulate.
Options: clarify; condition; define; generalize
Answer: generalize
Example sentence: "We stipulate the rules so everyone understands the expectations."

supreme (adjective) /səˈprim/
Definition: Of the highest or greatest authority, quality, or importance.
Antonyms quiz: Choose the opposite meaning of supreme.
Options: consummate; dominant; foremost; inferior
Answer: inferior
Example sentence: "The Supreme Court's decision set a precedent for future legal cases."

terra-firma (noun) /ˌtɛrə ˈfəːmə/
Definition: The solid and stable surface of the Earth, as opposed to bodies of water or other less stable terrains.
Antonyms quiz: Choose the opposite meaning of terra-firma.
Options: dirt; dryland; earth; water
Answer: water
Example sentence: "The traveler was glad to leave the ship and set foot on terra firma."

testify (verb) /ˈtɛstɪfʌɪ/
Definition: To give evidence or make a statement under oath, usually in a court of law or in a formal investigation.
Antonyms quiz: Choose the opposite meaning of testify.
Options: affirm; announce; argue; deny
Answer: deny
Example sentence: "The expert will testify about the authenticity of the artifact."

testimony (noun) /ˈtɛstɪməni/
Definition: A formal statement given under oath by a witness.
Antonyms quiz: Choose the opposite meaning of testimony.
Options: affidavit; attestation; declaration; lie
Answer: lie
Example sentence: "The lawyer skillfully cross-examined the witness's testimony."

unadulterated (adjective) /ʌnəˈdʌltəreɪtɪd/
Definition: In its purest form and not spoiled or diluted by the addition of other things.
Antonyms quiz: Choose the opposite meaning of unadulterated.
Options: unblemished; uncontaminated; undiluted; contaminated
Answer: contaminated
Example sentence: "Running a marathon with shin splints is sheer unadulterated hell."

undeniable (adjective) /ˌʌn dɪˈnaɪ ə bəl/
Definition: Beyond doubt, unquestionable, or indisputable.
Antonyms quiz: Choose the opposite meaning of undeniable.
Options: absolute; certain; clear; questionable
Answer: questionable
Example sentence: "The beauty of the sunset was undeniable; it painted the sky with vibrant colors."

unequivocal (adjective) /ˌʌnɪˈkwɪvəkl/
Definition: Absolute, unambiguous, and beyond any doubt or misunderstanding.
Antonyms quiz: Choose the opposite meaning of unequivocal.
Options: absolute; certain; decisive; ambiguous
Answer: ambiguous
Example sentence: "The success of the mission was an unequivocal triumph."

unquestionable (adjective) /ʌnˈkwɛstʃənəbl/
Definition: Cannot be doubted or disputed, and is considered certain or indisputable.
Antonyms quiz: Choose the opposite meaning of unquestionable.
Options: absolute; certain; clear; debatable
Answer: debatable
Example sentence: "The historical accuracy of the document was unquestionable due to its reliable sources."

veritable (adjective) /ˈvɛrɪtəbl/
Definition: To emphasize the authenticity or validity of a statement or claim.
Antonyms quiz: Choose the opposite meaning of veritable.
Options: absolute; downright; perfect; dubious
Answer: dubious
Example sentence: "His expertise in the field is a veritable asset to the team."

verity (noun) /ˈvɛr ɪ ti/
Definition: A statement, fact, or principle that is universally accepted as true and is often regarded as a fundamental truth or reality.
Antonyms quiz: Choose the opposite meaning of verity.
Options: actuality; authenticity; certainty; falsehood
Answer: falsehood
Example sentence: "The verity of kindness being a virtue transcends cultural boundaries."

volition (noun) /vəˈlɪʃ(ə)n/
Definition: The act of using one's will to make your own choices and decisions.
Antonyms quiz: Choose the opposite meaning of volition.
Options: autonomy; choice; choosing; coercion
Answer: coercion
Example sentence: "Autonomy allows individuals to act on their volition."

writ (noun) /rɪt/
Definition: A legal document issued by a court that commands or authorizes a particular action.
Antonyms quiz: Choose the opposite meaning of writ.
Options: command; decree; directive; violation
Answer: violation
Example sentence: "The defendant's lawyer argued that the writ was invalid due to a technicality."