Pronunciation: /ˈfuːlɪʃnəs/
noun the quality or state of being foolish; lack of good sense or judgment
A1 His foolishness led to many mistakes.
A2 She realized the foolishness of her actions after it was too late.
B1 The decision to invest all his money in one stock showed his foolishness.
B2 Despite warnings from others, he continued with his foolishness.
C1 The CEO's foolishness in ignoring market trends led to the company's downfall.
C2 The politician's foolishness in making controversial statements cost him the election.
formal The decision to invest all his savings in a risky venture showed his foolishness.
informal Her foolishness in believing everything she read online led to many mistakes.
slang I can't believe the level of foolishness he displayed by trying to jump off the roof.
figurative The foolishness of trying to control everything in life became clear to her as she learned to let go.
foolishnesses
more foolish
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has been foolishness
is being foolishness
foolishness
foolishness
to be foolish
foolishing
foolished