/ Thesaurus / F Synonyms of filibusterer Find synonyms for: Noun1. filibuster, filibusterer, legislator, delayerusage: a legislator who gives long speeches in an effort to delay or obstruct legislation that he (or she) opposesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language