/ Thesaurus / U Synonyms of unadaptability Find synonyms for: Noun1. unadaptability, inability, unfitnessusage: the inability to change or be changed to fit changed circumstancesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language