adjective fool·ish \ˈfü-lish\

: having or showing a lack of good sense or judgment

Full Definition of FOOLISH

:  lacking in sense, judgment, or discretion
a :  absurd, ridiculous
b :  marked by a loss of composure :  nonplussed
fool·ish·ly adverb

Examples of FOOLISH

  1. He was wearing a foolish grin.
  2. She's been taking foolish risks.
  3. Those flashy clothes make her look foolish.
  4. She must feel foolish wearing those flashy clothes.
  5. I never thought you'd be foolish enough to believe him.

First Known Use of FOOLISH

13th century

Synonym Discussion of 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>.

Rhymes with FOOLISH

FOOLISHLY Defined for Kids


adjective fool·ish \ˈfü-lish\

Definition of FOOLISH for Kids

:  showing or resulting from lack of good sense <a foolish man> <a foolish choice>
fool·ish·ly adverb
fool·ish·ness noun


Next Word in the Dictionary: foolish guillemotPrevious Word in the Dictionary: fool henAll Words Near: foolish
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears