Definition of foolish adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//ˈfuːlɪʃ//
    ; NAmE NAmE//ˈfuːlɪʃ//
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  1. 1(of actions or behaviour) not showing good sense or judgement synonym silly, stupid She's just a vain, foolish woman. I was foolish enough to believe what Jeff told me. The accident was my fault—it would be foolish to pretend otherwise. How could she have been so foolish as to fall in love with him? a foolish idea/dream/mistake It was a very foolish thing to do.
  2. 2[not usually before noun] made to feel or look silly and embarrassed synonym silly, stupid I felt foolish and a failure. He's afraid of looking foolish in front of his friends. See related entries: Embarrassment
  3. Extra examples It’s foolish of me, I know, but I never thought he’d lie to me. She spoke as though to a child who had asked a foolish question. She’s just a vain, foolish woman.
See the Oxford Advanced American Dictionary entry: foolish