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foolish

[ foo-lish ]
/ ˈfu lɪʃ /
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See synonyms for: foolish / foolishly / foolishness on Thesaurus.com

Definition of foolish

adjective
resulting from or showing a lack of sense; ill-considered: unwise: a foolish action;a foolish speech.
lacking forethought or caution.
trifling, insignificant, or paltry.
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Origin of foolish

First recorded in 1250–1300, foolish is from the Middle English word folish, foolish. See fool1, -ish1

OTHER WORDS FROM foolish

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022

How to use foolish in a sentence

British Dictionary definitions for foolish

foolish
/ (ˈfuːlɪʃ) /

adjective
unwise; silly
resulting from folly or stupidity
ridiculous or absurd; not worthy of consideration
weak-minded; simple
an archaic word for insignificant

Derived forms of foolish

foolishly, adverbfoolishness, noun
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

Other Idioms and Phrases with foolish

foolish

see penny wise and pound foolish.

The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
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