fallacy

fal·la·cy

 (făl′ə-sē)

n. pl. fal·la·cies

1. A false notion.

2. A statement or an argument based on a false or invalid inference.

3. Incorrectness of reasoning or belief; erroneousness.

4. The quality of being deceptive.


[Alteration of Middle English fallace, from Old French, from Latin fallācia, deceit, from fallāx, fallāc-, deceitful, from fallere, to deceive.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

fallacy

(ˈfæləsɪ)

n, pl -cies

1. an incorrect or misleading notion or opinion based on inaccurate facts or invalid reasoning

2. unsound or invalid reasoning

3. the tendency to mislead

4. (Logic) logic an error in reasoning that renders an argument logically invalid

[C15: from Latin fallācia, from fallax deceitful, from fallere to deceive]

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

fal•la•cy

(ˈfæl ə si)

n., pl. -cies.

1. a deceptive, misleading, or false notion, belief, etc.; misconception.

2. a misleading or unsound argument.

3. erroneousness.

4. any of various types of erroneous reasoning that render arguments logically unsound.

[1350–1400; Middle English fallace < Middle French < Latin fallācia a trick, deceit]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

ThesaurusAntonymsRelated WordsSynonymsLegend:

Noun1.fallacy - a misconception resulting from incorrect reasoning

pseudoscience - an activity resembling science but based on fallacious assumptions

pathetic fallacy - the fallacy of attributing human feelings to inanimate objects; `the friendly sun' is an example of the pathetic fallacy

sophism, sophistry, sophistication - a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone

paralogism - an unintentionally invalid argument

Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.

fallacy

Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002

fallacy

noun

1. An erroneous or false idea:

2. Plausible but invalid reasoning:

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Translations

مَظْهَر خادِع، مُغالَطَه

bludklamomyl

fejlslutningvildfarelse

téveszme

röng hugmynd, villa

klaidinga nuomonėklaidingas įsitikinimas

kļūdamaldi

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

Collins English/French Electronic Resource. © HarperCollins Publishers 2005

fallacy

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007

fallacy

[ˈfæləsɪ] nerrore m

Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995

fallacy

(ˈfӕləsi) plural ˈfallacies noun

a wrong idea or belief, usually one that is generally believed to be true; false reasoning. That belief is just a fallacy.

fallacious (fəˈleiʃəs) adjective

wrong, mistaken or showing false reasoning. a fallacious argument.

Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.