ENGLISH
REFERENCE

antitrust

adj.
C1 Advanced US //ˌæntaɪˈtɹəst// UK //ˌæntɪtɹˈʌst// an·titrust

adj. relating to laws that stop companies from becoming too powerful or controlling a market. You use this word when talking about business rules and fair competition.

adj. relating to legislation or legal actions designed to prevent the formation of monopolies and promote fair competition in the marketplace. Typically used attributively before nouns such as 'law', 'policy', or 'regulation'.


SIMPLE

The government passed a new antitrust law.

CONTEXTUAL

The agency launched an antitrust investigation into the tech giant's recent merger.

COMPLEX

Critics argued that the company's aggressive pricing strategy violated antitrust principles by effectively squeezing out smaller competitors from the digital marketplace.

Synonyms
Origin

From anti- + trust.

Usage

Primarily used as an attributive adjective modifying nouns related to law, policy, or investigation.

© 2026 English Reference