/ Thesaurus / U Synonyms of unhardened Find synonyms for: Adjective1. untempered (vs. tempered), unhardened, brittle, unannealedusage: not brought to a proper consistency or hardness; "untempered mortar"; "untempered steel"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language