foolish

adjective

fool·​ish ˈfü-lish How to pronounce foolish (audio)
1
: having or showing a lack of good sense, judgment, or discretion
a foolish mistake
She takes foolish risks.
2
a
: absurd, ridiculous
He looked foolish in that hat.
b
: marked by a loss of composure : nonplussed
He felt foolish when he couldn't remember where he had parked the car.
3
foolishly adverb
Choose the Right Synonym for foolish

simple, foolish, silly, fatuous, asinine mean actually or apparently deficient in intelligence.

simple implies a degree of intelligence inadequate to cope with anything complex or involving mental effort.

considered people simple who had trouble with computers

foolish implies the character of being or seeming unable to use judgment, discretion, or good sense.

foolish stunts

silly suggests failure to act as a rational being especially by ridiculous behavior.

the silly antics of revelers

fatuous implies foolishness, inanity, and disregard of reality.

fatuous conspiracy theories

asinine suggests utter and contemptible failure to use normal rationality or perception.

an asinine plot

Examples of foolish in a Sentence

He was wearing a foolish grin. She's been taking foolish risks. Those flashy clothes make her look foolish. She must feel foolish wearing those flashy clothes. I never thought you'd be foolish enough to believe him.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And this is not a story of corporate greed run amok, because Walmart would be foolish to try to gouge its customers at a time when economic anxiety is high (more on that in a moment). Allison Morrow, CNN Money, 16 May 2025 Peters said the training from Wayne State's Institute of Gerontology has helped credit union employees to better frame probing questions that will get a positive response without making members feel foolish. Susan Tompor, USA Today, 15 May 2025 Expecting McCarthy to produce anywhere near the level Mahomes did would be foolish. Alec Lewis, New York Times, 13 May 2025 There is a difference between quixotic and foolish. Ilan Stavans, The Atlantic, 15 Apr. 2025 See All Example Sentences for foolish

Word History

Etymology

see fool entry 1

First Known Use

13th century, in the meaning defined at sense 1

Time Traveler
The first known use of foolish was in the 13th century

Browse Nearby Words

Cite this Entry

“Foolish.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foolish. Accessed 23 May. 2025.

Kids Definition

foolish

adjective
fool·​ish ˈfü-lish How to pronounce foolish (audio)
: lacking in good sense or judgment : silly
foolishly adverb
foolishness noun

More from Merriam-Webster on foolish

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