/ Thesaurus / D Synonyms of dubiousness Find synonyms for: Noun1. doubt, uncertainty, incertitude, dubiety, doubtfulness, dubiousness, cognitive state, state of mindusage: the state of being unsure of something2. doubt, dubiousness, doubtfulness, question, uncertainty, uncertainness, precariousnessusage: uncertainty about the truth or factuality or existence of something; "the dubiousness of his claim"; "there is no question about the validity of the enterprise"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: heifer Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language