Wordfinder

Fallacy definition

fălə-sē
fallacies
See word origin
Frequency:
A statement or an argument based on a false or invalid inference.
noun
8
0
A false notion.
noun
7
1
Incorrectness of reasoning or belief; erroneousness.
noun
4
0
(obs.) Deception.
noun
2
0
Aptness to mislead; deceptive or delusive quality.

The fallacy of the senses.

noun
1
0
Advertisement
A false or mistaken idea, opinion, etc.; error.
noun
1
0
The quality of being deceptive.
noun
2
2
The definition of a fallacy is a deceptive or false notion.

An example of fallacy is the idea that the sun spins around the earth.

noun
0
0
An error in reasoning; flaw or defect in argument.
noun
0
0
(logic) An argument which does not conform to the rules of logic, esp. one that appears to be sound.
noun
0
0
Advertisement
Deceptive or false appearance; deceitfulness; that which misleads the eye or the mind; deception.
noun
0
0
(logic) An argument, or apparent argument, which professes to be decisive of the matter at issue, while in reality it is not. A specious argument.
noun
0
0

Other Word Forms

Noun

Singular:
fallacy
Plural:
fallacies

Origin of fallacy

  • Alteration of Middle English fallace from Old French from Latin fallācia deceit from fallāx fallāc- deceitful from fallere to deceive

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Middle English, from Old French fallace, from Latin fallacia (“deception, deceit”), from fallax (“deceptive, deceitful”), from fallere (“to deceive”).

    From Wiktionary

Fallacy Sentence Examples

  • Paradox, however, soon becomes stale, and fallacy wearisome.

  • Violation of this is the fallacy of " undistributed middle."

  • But his arguments are generally vitiated by the fallacy of assuming what they profess to prove.

  • So the so-called naturalistic fallacy is no fallacy at all.

More sentences

Related articles

Words near fallacy in the Dictionary