/ Thesaurus / O Synonyms of on faith Find synonyms for: Adverb1. on faithusage: with trust and confidence; "we accepted him on faith"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language