Breadcrumb Home > Thesaurus > S Synonyms of separationist Find synonyms for: Noun 1. separatist, separationist, advocate, advocator, proponent, exponent usage: an advocate of secession or separation from a larger group (such as an established church or a national union) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of separationist (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: genome Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language