/ Thesaurus / U Synonyms of unilateralist Find synonyms for: Noun1. unilateralist, advocate, advocator, proponent, exponentusage: an advocate of unilateralismWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language