/ Thesaurus / A Synonyms of antitrust law Find synonyms for: Noun1. antitrust legislation, antitrust law, lawusage: law intended to promote free competition in the market place by outlawing monopoliesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language