fallacious

American  

[fuh-ley-shuhs] / fəˈleɪ ʃəs /

adjective

1. containing a fallacy; logically unsound.

   fallacious arguments.

2. deceptive; misleading.

   fallacious testimony.

3. disappointing; delusive.

   a fallacious peace.

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fallacious British  

/ fəˈleɪʃəs /

adjective

1. containing or involving a fallacy; illogical; erroneous

2. tending to mislead

3. delusive or disappointing

   a fallacious hope

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Other Word Forms

• fallaciously adverb
• fallaciousness noun
• nonfallacious adjective
• nonfallaciously adverb
• nonfallaciousness noun
• unfallacious adjective
• unfallaciously adverb

Etymology

Origin of fallacious

First recorded in 1500–10, fallacious is from the Latin word fallāciōsus deceitful, deceptive. See fallacy, -ous

Example Sentences

Still, his audience is so addled by their singular desire to "trigger the liberals" that they ignore his fallacious reasoning.

From Salon

"The idea of 'supplementing', taking increased doses of various substances to give someone a 'superimmunity' is fallacious, and unfortunately it is widespread in general society as well as among specialists," Dr Bacchi says.

From BBC

“Professing to teach virtue, they really taught the art of fallacious discourse, and meanwhile propagated immoral practical doctrines,” Kerferd wrote of Sophists.

From Washington Post

Draconian lockdown policies that fallaciously promised maximum safety remained in place, and retained strong public support, even as they failed to stem the spread and as the collateral damage they inflicted mounted massively.

From Washington Post

That’s why I try to catch myself when I think in fallacious generalizations, the same sort that I hear all the time:

From New York Times