/ Thesaurus / A Synonyms of agenesia Find synonyms for: Noun1. agenesis, agenesia, nondevelopmentusage: imperfect development; nondevelopment of a partWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: garrulous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language