idiosyncrasy

/หŒษชd.i.ษ™สŠหˆsษชล‹.kษนษ™.si/

IPA: /IH0 D IY0 OW0 S IH1 N K R AH0 S IY0/

noun
  1. 1

    A behavior or way of thinking that is characteristic of a person.

  2. 2

    A language or behaviour that is particular to an individual or group.

  3. 3

    A peculiar individual reaction to a generally innocuous substance or factor.

  4. 4

    A peculiarity that serves to distinguish or identify.

    โ€œHe mastered the idiosyncrasies of English spelling and speech.โ€

Source: https://en.wiktionary.org/wiki/idiosyncrasy