/ Thesaurus / F Synonyms of frostiness Find synonyms for: Noun1. frostiness, coldness, cold, low temperature, frigidity, frigidnessusage: coldness as evidenced by frost2. frostiness, hoariness, white, whitenessusage: a silvery-white colorWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: dormant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language