/ Dictionary / Index A antitrust: Meaning and Definition of Find definitions for: an•ti•trust Pronunciation: (an"tē-trust', an"tī-), [key] — adj. opposing or intended to restrain trusts, monopolies, or other large combinations of business and capital, esp. with a view to maintaining and promoting competition: antitrust legislation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: antitrust (Thesaurus) antitragus antitruster Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language