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

Officials hope fans will see it as a signal of a return to the roots, now that a contentious antitrust lawsuit and an unpopular playoff system have been left behind in 2025. —Jeff Gluck, New York Times, 9 Feb. 2026

Her authority has been challenged in several high-profile cases, diminishing hopes in both progressive and populist MAGA circles for tough antitrust enforcement. —Rohan Goswami, semafor.com, 9 Feb. 2026

If yes, then a relevant antitrust market exists, as that provider enjoys pricing power. —Hal Singer, Fortune, 7 Feb. 2026

The Amazon-like company has been subjected to a number of investigations, raids, and inspections initiated by the Korea Fair Trade Commission, the country’s primary antitrust regulator, in recent years. —David Zimmermann, The Washington Examiner, 6 Feb. 2026

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