Breadcrumb Home > Thesaurus > F Synonyms of fanaticism Find synonyms for: Noun 1. fanaticism, fanatism, zealotry, intolerance usage: excessive intolerance of opposing views WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of fanaticism (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: meretricious Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language