/ Thesaurus / I Synonyms of innominate bone Find synonyms for: Noun1. hipbone, innominate bone, bone, osusage: large flaring bone forming one half of the pelvis; made up of the ilium and ischium and pubisWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language