Definitions of silliness
  1. noun
    a ludicrous folly
    synonyms: absurdity, fatuity, fatuousness
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    type of:
    folly, foolishness, unwiseness
    the trait of acting stupidly or rashly
  2. noun
    an impulsive scatterbrained manner
    synonyms: giddiness
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    lightness, lightsomeness
    the trait of being lighthearted and frivolous
    type of:
    frivolity, frivolousness
    the trait of being frivolous; not serious or sensible
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