/ Dictionary / Index A antitussive: Meaning and Definition of Find definitions for: an•ti•tus•sive Pronunciation: (an"tē-tus'iv, an"tī-), [key] — Pharm. Pharm. —adj. of or pertaining to a substance that is used to suppress coughing. —n. any such substance, as codeine. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antitussive (Thesaurus) antitruster antitwilight arch Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language