Breadcrumb Home > Thesaurus > C Synonyms of calumnious Find synonyms for: Adjective 1. calumniatory, calumnious, defamatory, denigrative, denigrating, denigratory, libellous, libelous, slanderous, harmful (vs. harmless) usage: (used of statements) harmful and often untrue; tending to discredit or malign WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of calumnious (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: fatuous Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language