/ Dictionary / Index D dubitable: Meaning and Definition of Find definitions for: du•bi•ta•ble Pronunciation: (d'bi-tu-bul, dy'-), [key] — adj. open to doubt; doubtful; uncertain. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dubitable (Thesaurus) dubious dubitation Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language