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.

Fallacy or whatever, but it's traditionally called the Netherlands Fallacy.

From Salon • May 3, 2024

Fallacy 3: Schulz headed the executive committee while the conference worked through a media rights deal with little sense of urgency.

From Seattle Times • Aug. 18, 2023

It is human nature to not want to give up once we’ve invested time and money because of Sunk Cost Fallacy.

From Slate • Sep. 26, 2022

Fallacy an error in logical reasoning—for example, jumping to a conclusion without proper evidence.

From Textbooks • Jun. 15, 2022

It is, however, convenient to reserve the name Fallacy of Confusion for cases where Confusion is the sole cause of the error.

From Analysis of Mr. Mill's System of Logic by Stebbing, W. (William)

Vocabulary lists containing fallacy

Argumentative Writing

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TEKS ELAR Academic Vocabulary List (5th-7th grades)

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Power Suffix: -acy

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