/ Thesaurus / I Synonyms of imperforate hymen Find synonyms for: Noun1. imperforate hymen, hymen, maidenhead, virginal membraneusage: hymen that is completely closed so that menstrual blood cannot flow outWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language