/ Thesaurus / U Synonyms of unyieldingness Find synonyms for: Noun1. adamance, obduracy, unyieldingness, resoluteness, firmness, firmness of purpose, resolve, resolutionusage: resoluteness by virtue of being unyielding and inflexibleWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language