Breadcrumb Home > Thesaurus > P Synonyms of propriety Find synonyms for: Noun1. propriety, properness, correctitude, demeanor, demeanour, behavior, behaviour, conduct, deportmentusage: correct or appropriate behaviorWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of propriety (Dictionary) ✖ Related Content Daily Word Quiz: perambulate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language