Breadcrumb Home > Thesaurus > S Synonyms of serenity Find synonyms for: Noun 1. repose, quiet, placidity, serenity, tranquillity, tranquility, composure, calm, calmness, equanimity usage: a disposition free from stress or emotion 2. peace, peacefulness, peace of mind, repose, serenity, heartsease, ataraxis, tranquillity, tranquility, quietness, quietude usage: the absence of mental stress or anxiety WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of serenity (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: inimical Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language