/ Dictionary / Index D disadvantageous: Meaning and Definition of Find definitions for: dis•ad•van•ta•geous Pronunciation: (dis-ad"vun-tā'jus, dis"ad-), [key] — adj. characterized by or involving disadvantage; unfavorable; detrimental. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: disadvantageous (Thesaurus) disadvantaged disaffect Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language