/ Thesaurus / A Synonyms of antediluvian patriarch Find synonyms for: Noun1. antediluvian, antediluvian patriarch, patriarchusage: any of the early patriarchs who lived prior to the Noachian delugeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: boorish Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language