noun \fə-ˈtü-ət-ē, fa-, -ˈchü-, -ˈtyü-\

: a foolish or stupid quality : a fatuous quality

: something foolish or stupid : a fatuous remark

plural fa·tu·ities

Full Definition of FATUITY

a :  something foolish or stupid
b :  stupidity, foolishness
archaic :  imbecility, dementia

Examples of FATUITY

  1. the fatuity of these policies
  2. politicians exchanging fatuities about the need for campaign reform

Origin of FATUITY

Middle French fatuité foolishness, from Latin fatuitat-, fatuitas, from fatuus
First Known Use: 1538


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