Definition of foolishness
1 : foolish behavior
2 : a foolish act or idea
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Examples of foolishness in a sentence
the foolishness of going off to search for the fountain of youth
couldn't listen to another second of their foolishness, so I told them to be quiet
15th Century
First Known Use of foolishness
15th century
Learn More about foolishness
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Thesaurus: All synonyms and antonyms for foolishness Spanish Central: Translation of foolishness Nglish: Translation of foolishness for Spanish speakers Britannica English: Translation of foolishness for Arabic speakers
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