/ Dictionary / Index D dubious: Meaning and Definition of Find definitions for: du•bi•ous Pronunciation: (d'bē-us, dy'-), [key] — adj. doubtful; marked by or occasioning doubt: a dubious reply. of doubtful quality or propriety; questionable: a dubious compliment; a dubious transaction. of uncertain outcome: in dubious battle. wavering or hesitating in opinion; inclined to doubt. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dubious (Thesaurus) dubiosity dubitable Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language