peculiarity n. + Add to list US //pɪkˌjuɫiˈɛɹəti// UK //pɪkjˌuːlɪˈæɹɪti// pe·cu·liar·i·ty SynonymsEtymology Synonyms curiocuriositydistinctivenessoddityoddmentspecialityspecialnessspecialtyOrigin From peculiar + -ity.