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Showing results for fallacy. Search instead for fallar.
Definitions

fallacy

[fal-uh-see] / ˈfæl ə si /
NOUN
illusion, misconception
Synonyms
STRONGEST
deception falsehood heresy inconsistency misinterpretation paradox untruth
STRONG
aberration ambiguity artifice bias casuistry cavil deceit deceptiveness delusion deviation elusion equivocation erratum erroneousness error evasion faultiness flaw illogicality inexactness invalidity misapprehension miscalculation misconstrual mistake notion perversion preconception prejudice quirk solecism sophism sophistry speciousness subterfuge
WEAK
non sequitur quibbling
Antonyms
STRONGEST
truth
STRONG
accuracy certainty conformity correction directness facing fairness frankness honesty meeting openness reality sameness truthfulness
WEAK
evidence fact right surety

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The sunk-cost fallacy tempts people to pay escalating premiums because they’ve paid for so long.

From MarketWatch • Nov. 15, 2025

That would be a fallacy, but Mr. Bottum didn’t commit it.

From The Wall Street Journal • Nov. 13, 2025

The promise is that we can shape behavior; the fallacy is that the power rarely reaches beyond cosmetic concessions.

From Salon • Aug. 28, 2025

It was a "fallacy" and "misunderstanding of the world" if people did not "believe that the online space is as dangerous for people as the streets," he added.

From BBC • May 24, 2025

Had it not been exposed long ago as a fallacy?

From "1984" by George Orwell

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.