fallacy [fal-uh-see] (previously 05-04-13)
noun, plural fal·la·cies.
1. a deceptive, misleading, or false notion, belief, etc.: That the world is flat was at one time a popular fallacy.
2. a misleading or unsound argument.
3. deceptive, misleading, or false nature; erroneousness.
4. Logic . any of various types of erroneous reasoning that render arguments logically unsound.
5. Obsolete . deception.
RELATED WORDS
falsehood, deception, misinterpretation, untruth, heresy, paradox, inconsistency, cavil, perversion, delusion, miscalculation, bias, casuistry, artifice, evasion, quirk, ambiguity, speciousness, sophistry, deviation
NEARBY WORDS
fall-off, falla, falla, manuel de, fallacious, fallaciously, fallacy of composition, fallacy of division, fallacy of many questions, fallal, fallback
SYNONYMS
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1. misconception, delusion, misapprehension.
Origin: 1350–1400; < Latin fallacia a trick, deceit, equivalent to fallac- (stem of fallax ) deceitful, fallacious + -ia -y; replacing Middle English fallace < Middle French
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