antitrust

adjective

an·​ti·​trust

ˌan-tē-ˈtrəst, 

ˌan-ˌtī- 

: of, relating to, or being legislation against or opposition to trusts or combinations

specifically : consisting of laws to protect trade and commerce from unlawful restraints and monopolies or unfair business practices

Examples of antitrust in a Sentence

Recent Examples on the Web

The agency works on antitrust and consumer protection issues. —Justin Jouvenal The Washington Post, Arkansas Online, 9 Dec. 2025

Take antitrust immunity, for example. —Michael McCann, Sportico.com, 9 Dec. 2025

The announcement sparked intense bipartisan backlash from lawmakers, who argued that the case is a classic antitrust violation. —David Zimmermann, The Washington Examiner, 9 Dec. 2025

Past presidents have seldom involved themselves in antitrust reviews involving mergers between companies. —Connor Greene, Time, 8 Dec. 2025

Word History

First Known Use

1888, in the meaning defined above

Rhymes for antitrust

• overthrust
• readjust
• unitrust
• wanderlust
• adjust
• combust
• discussed
• disgust
• distrust
• entrust
• intrust
• mistrust

Legal Definition

antitrust

adjective

an·​ti·​trust ˌan-tē-ˈtrəst, ˌan-ˌtī- 

: of, relating to, or being legislation against or opposition to business trusts or combinations

specifically : consisting of laws to protect trade and commerce from unlawful restraints and monopolies or unfair business practices see also Clayton Antitrust Act and Sherman Antitrust Act