[ + to do sth ] It would be foolish to ignore his advice. foolishly. adverb. foolishness. noun [ U ]. (Definition of foolish from the
foolishness.
foolfoolsfooledfoolingfoolish
It is foolish to risk skin cancer. He admitted that he had acted foolishly. They don't accept any foolishness when it comes to spending money. Synonyms:
The words fatuous and foolish can be used in similar contexts, but fatuous implies foolishness, inanity, and disregard of reality. fatuous conspiracy theories.
foolishness My father was not one to tolerate foolishness. (Definition of foolish from the Cambridge Academic Content Dictionary © Cambridge