/ Thesaurus / U Synonyms of undefeated Find synonyms for: Adjective1. undefeated (vs. defeated), triumphant, victorious, unbeaten, unconquered, unvanquished, unbowed, successfulusage: victorious; "undefeated in battle"; "an undefeated team"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language