Breadcrumb Home > Thesaurus > Z Synonyms of zoroastrianism Find synonyms for: Noun 1. Zoroastrianism, Mazdaism, religion, faith, religious belief usage: system of religion founded in Persia in the 6th century BC by Zoroaster; set forth in the Zend-Avesta; based on concept of struggle between light (good) and dark (evil) WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of zoroastrianism (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: antebellum Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language