/ Dictionary / Index A antiterrorist: Meaning and Definition of Find definitions for: an•ti•ter•ror•ist Pronunciation: (an"tē-ter'ur-ist, an"tī-), [key] — adj. used or designed to combat terrorism: antiterrorist tactics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. antitank antithesis Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language