Breadcrumb Home > Thesaurus > I Cite Synonyms of idiomatic expression Find synonyms for: Noun1. idiom, idiomatic expression, phrasal idiom, set phrase, phrase, saying, expression, locutionusage: an expression whose meanings cannot be inferred from the meanings of the words that make it upWordNet 3.0 Copyright 2006 by Princeton University. All rights reserved. TrendingHere are the facts and trivia that people are buzzing about. February 2021 Current Events: US News The Berlin Conference and the Partition of Africa The Implied Powers of Congress The Women's March on Versailles Keeping Your Brain Active in a COVID-19 World The Manchu Related Content Daily Word Quiz: internecine Analogy of the Day: Today?s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language