/ Dictionary / Index A antihero: Meaning and Definition of Find definitions for: an•ti•he•ro Pronunciation: (an'tē-hēr"ō, an'tī-), [key] — pl. -roes. a protagonist who lacks the attributes that make a heroic figure, as nobility of mind and spirit, a life or attitude marked by action or purpose, and the like. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antihero (Thesaurus) antihemophilic factor antiheroic Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language