/ Thesaurus / T Synonyms of thwarter Find synonyms for: Noun1. obstructionist, obstructor, obstructer, resister, thwarter, disputant, controversialist, eristicusage: someone who systematically obstructs some action that others want to takeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language