idiosyncrasy Meaning, Definition & Usage

  1. noun a behavioral attribute that is distinctive and peculiar to an individual
    mannerism; foible.

WordNet

Id`i*o*syn"cra*sy noun
Etymology
Gr. proper, peculiar + a mixing together, fr. to mix together; with + to mix: cf. F. idiosyncrasie. See Idiom, and Crasis.
Wordforms
plural Idiosyncrasies
Definitions
  1. A peculiarity of physical or mental constitution or temperament; a characteristic belonging to, and distinguishing, an individual; characteristic susceptibility; idiocrasy; eccentricity.
    The individual mind . . . takes its tone from the idiosyncrasies of the body. I. Taylor.

Webster 1913