/ Thesaurus / U Synonyms of unslaked lime Find synonyms for: Noun1. calcium oxide, quicklime, lime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime, oxideusage: a white crystalline oxide used in the production of calcium hydroxideWordNet 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