/ Thesaurus / L Synonyms of lustrelessness Find synonyms for: Noun1. flatness, lusterlessness, lustrelessness, mat, matt, matte, dullnessusage: the property of having little or no contrast; lacking highlights or glossWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language