/ Thesaurus / L Synonyms of lugubriousness Find synonyms for: Noun1. gloominess, lugubriousness, sadness, uncheerfulnessusage: the quality of excessive mournfulness and uncheerfulnessWordNet 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