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fatuous

[ fach-oo-uhs ]
/ ˈfætʃ u əs /
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See synonyms for: fatuous / fatuousness on Thesaurus.com

adjective
foolish or inane, especially in an unconscious, complacent manner; silly; witless.
Archaic. unreal; illusory.
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Origin of fatuous

First recorded in 1625–35; from Latin fatuus “silly, foolish, idiotic”; see -ous

OTHER WORDS FROM fatuous

fat·u·ous·ly, adverbfat·u·ous·ness, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

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What are other ways to say fatuous?

The adjective fatuous describes people or things that are foolish or inane, especially in an unconscious, complacent manner. Do you know when to use fatuous, foolish, silly, inane, stupid, and asinine? Find out on Thesaurus.com.

How to use fatuous in a sentence

British Dictionary definitions for fatuous

fatuous
/ (ˈfætjʊəs) /

adjective
complacently or inanely foolish

Derived forms of fatuous

fatuously, adverbfatuousness, noun

Word Origin for fatuous

C17: from Latin fatuus; related to fatiscere to gape
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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