adj.

Foolish or silly, especially in a smug or self-satisfied way: “‘Don't you like the poor lonely bachelor?’ he yammered in a fatuous way” (Sinclair Lewis). See synonyms at foolish.

[From Latin fatuus.]

fatuously fat'u·ous·ly adv.
fatuousness fat'u·ous·ness n.

adjective

Displaying a complete lack of forethought and good sense: brainless, foolish, insensate, mindless, senseless, silly, unintelligent, weak-minded, witless. See ability/inability, planned/unplanned.

adj

Definition: stupid
Antonyms: aware, bright, intelligent, keen, sensible, smart

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IN BRIEF: Foolish or stupid.

Wearing a nametag is an extremely fatuous mistake for a bank robber to make.

Tutor's tip: The collector made a "factious" (quarrelsome) remark to the "fatuous" (silly, inane) shopkeeper who tried to sell her a "factitious" (lacking authenticity) antique with a "fictitious" (invented) history.

Dansk (Danish)
adj. - tåbelig, åndssvag, ligegyldig

Nederlands (Dutch)
stompzinnig

Français (French)
adj. - stupide, futile

Deutsch (German)
adj. - albern, einfältig

Ελληνική (Greek)
adj. - βλακώδης, άσκοπος

Italiano (Italian)
stupido, fatuo

Português (Portuguese)
adj. - tolo

Русский (Russian)
бессмысленный, самодовольно-глупый

Español (Spanish)
adj. - fatuo, necio, presumido

Svenska (Swedish)
adj. - dum

中文（简体） (Chinese (Simplified))
发呆的, 自满的, 愚笨的

中文（繁體） (Chinese (Traditional))
adj. - 發呆的, 自滿的, 愚笨的

한국어 (Korean)
adj. - 어리석은 , 얼빠진

日本語 (Japanese)
adj. - まぬけの, ばかの

العربيه (Arabic)
‏(صفه) غبي , سخيف , أحمق‏

עברית (Hebrew)
adj. - ‮טפשי, חסר-מטרה, אידיוטי‬

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