Opposing or intended to regulate business monopolies, such as trusts or cartels, especially in the interest of promoting competition: antitrust legislation. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "antitrust" in a sentence
"Hence this has to be addressed in antitrust law to some extent."
"These companies would like to pretend that they want to collaborate to reduce costs, but antitrust is the obstacle."
"The requests, a special kind of subpoena used in antitrust investigations, followed a complaint by [the Computer & Communications Industry Association — a group with many IBM rivals among its members] to the Justice Department accusing IBM of harming businesses by abusing its dominance of the market for mainframes."