Breadcrumb Home > Thesaurus > P Synonyms of peloponnesian war Find synonyms for: Noun1. Peloponnesian Warusage: a war in which Athens and its allies were defeated by the league centered on Sparta; 431-404 BCWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: legerdemain Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language