Breadcrumb Home > Thesaurus > P Synonyms of posterity Find synonyms for: Noun 1. descendants, posterity, biological group usage: all of the offspring of a given progenitor; "we must secure the benefits of freedom for ourselves and our posterity" 2. posterity, generation usage: all future generations WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of posterity (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: cognoscenti Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language