/ Thesaurus / C Synonyms of cathari Find synonyms for: Noun1. Albigenses, Cathars, Cathari, sect, religious sect, religious orderusage: a Christian religious sect in southern France in the 12th and 13th centuries; believers in AlbigensianismWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reticent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language