Definition of nicety noun from the Oxford Advanced Learner's Dictionary

     

    nicety

     noun
    noun
    BrE BrE//ˈnaɪsəti//
     
    ; NAmE NAmE//ˈnaɪsəti//
     
    (pl. niceties)(formal)
     
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  1. 1[countable, usually plural] the small details or points of difference, especially concerning the correct way of behaving or of doing things
  2. 2[uncountable] (formal) the quality of being very detailed or careful about something synonym precision the nicety of his argument
  3. Word Origin Middle English (in the sense ‘foolish conduct’): from Old French nicete, based on Latin nescius ‘ignorant’, from nescire ‘not know’.
See the Oxford Advanced American Dictionary entry: nicety