Breadcrumb Home > Thesaurus > I Synonyms of idiosyncrasy Find synonyms for: Noun 1. idiosyncrasy, foible, mannerism, peculiarity, specialness, specialty, speciality, distinctiveness usage: a behavioral attribute that is distinctive and peculiar to an individual WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of idiosyncrasy (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: feinschmecker Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language