Simple Definition of fatuous
: foolish or stupid
Full Definition of fatuous
: complacently or inanely foolish : silly <a fatuous remark>
Examples of fatuous in a sentence
<the fatuous questions that the audience members asked after the lecture suggested to the oceanographer that they had understood little>
<ignoring the avalanche warnings, the fatuous skiers continued on their course>
Did You Know?
I am two fools, I know, / For loving, and for saying so / In whining Poetry, wrote John Donne, simultaneously confessing to both infatuation and fatuousness. As any love-struck fool can attest, infatuation can make buffoons of the best of us. So it should come as no surprise that the words "fatuous" and "infatuation" derive from the same Latin root, fatuus, which means "foolish." Both terms have been part of English since the 17th century. "Infatuation" followed the earlier verb "infatuate," a "fatuus" descendant that once meant "to make foolish" but that now usually means "to inspire with a foolish love or admiration." "Fatuous" came directly from "fatuus." It's been used in English to describe the foolish and inane since at least 1633.
Origin of fatuous
Latin fatuus foolish
First Known Use: 1633
Synonym Discussion of fatuous
Seen and Heard
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