idiosyncrasy
UK /ˌɪdɪəʊˈsɪŋkɹəsi/ · US /ˌɪdiəˈsɪŋkɹəsi/ noun
Forms idiosyncrasies
- noun A behavior or way of thinking that is characteristic of a person or a group.
- noun (medicine, originally) A peculiar individual reaction to a generally innocuous substance or factor; a risk factor.
- noun A peculiarity that serves to distinguish or identify. “He mastered the idiosyncrasies of English spelling and speech.”
Synonyms
eccentricity foible habit idiocrasy mannerism oddity quirk vagary
Etymology
First attested in 1604, in modern sense since 1665, from Ancient Greek ἰδιοσυγκρασία (idiosunkrasía, “one’s own temperament”), from ἴδιος (ídios, “one’s own”) + σύν (sún, “together”) + κρᾶσις (krâsis, “temperament”). By surface analysis, idio- + syn- + -crasy.
Webster’s 1913
- noun A peculiarity of physical or mental constitution or temperament; a characteristic belonging to, and distinguishing, an individual; characteristic susceptibility; idiocrasy; eccentricity.
Etymology [Gr. idiosyncrasie. See Idiom, and Crasis.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “idiosyncrasy”, CC BY-SA 4.0. Details