trustbuster
noun
trust·bust·er
ˈtrəs(t)-ˌbə-stər 
: one who seeks to break up business trusts
specifically
: a federal official who prosecutes trusts under the antitrust laws
Examples of trustbuster in a Sentence
Recent Examples on the Web
Meanwhile, antitrust advocates are watching the break-up of the bipartisan trustbuster duo who sat atop the antitrust subcommittee.
—
Grace Segers, The New Republic, 13 Mar. 2023
Congress’s chief trustbuster, Senator Amy Klobuchar, is once again scrutinizing the merger, while her colleagues, like Representative Alexandria Ocasio-Cortez, have called the companies a monopoly.
—Vulture, 21 Nov. 2022
The original trustbuster himself, Teddy Roosevelt, admonished that size in and of itself is not bad.
—Steve Forbes, Forbes, 9 June 2022
During the next five years, Arnold became the country’s greatest trustbuster, issuing nearly as many indictments as had been brought since the Sherman Act was passed.
—Dan Kaufman, The New Yorker, 17 Aug. 2021
On the menu today: the Fed’s surprising hawkishness, the FTC’s new trustbuster, the anti-Amazon industry, and an evaluation of Congress’s recent antitrust proposals.
—Daniel Tenreiro, National Review, 17 June 2021
Europe has led the charge with antitrust investigations, and Margrethe Vestager, the region’s top trustbuster, recently vowed to take a harder line on the companies.
—David McCabe, BostonGlobe.com, 29 July 2020
The Competition and Markets Authority, the U.K.’s trustbuster, is getting tougher too.
—Chris Hughes | Bloomberg, Washington Post, 16 Dec. 2019
In their brief filed with the federal appeals court, the Justice Department lawyers sounded more like corporate defense attorneys than crusading trustbusters.
—Steven Pearlstein, Washington Post, 19 Dec. 2019
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Grace Segers, The New Republic, 13 Mar. 2023
Congress’s chief trustbuster, Senator Amy Klobuchar, is once again scrutinizing the merger, while her colleagues, like Representative Alexandria Ocasio-Cortez, have called the companies a monopoly.
—Vulture, 21 Nov. 2022
The original trustbuster himself, Teddy Roosevelt, admonished that size in and of itself is not bad.
—Steve Forbes, Forbes, 9 June 2022
During the next five years, Arnold became the country’s greatest trustbuster, issuing nearly as many indictments as had been brought since the Sherman Act was passed.
—Dan Kaufman, The New Yorker, 17 Aug. 2021
On the menu today: the Fed’s surprising hawkishness, the FTC’s new trustbuster, the anti-Amazon industry, and an evaluation of Congress’s recent antitrust proposals.
—Daniel Tenreiro, National Review, 17 June 2021
Europe has led the charge with antitrust investigations, and Margrethe Vestager, the region’s top trustbuster, recently vowed to take a harder line on the companies.
—David McCabe, BostonGlobe.com, 29 July 2020
The Competition and Markets Authority, the U.K.’s trustbuster, is getting tougher too.
—Chris Hughes | Bloomberg, Washington Post, 16 Dec. 2019
In their brief filed with the federal appeals court, the Justice Department lawyers sounded more like corporate defense attorneys than crusading trustbusters.
—Steven Pearlstein, Washington Post, 19 Dec. 2019
Cite this Entry
“Trustbuster.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trustbuster. Accessed 4 Jul. 2025.
Copy CitationLegal Definition
trustbuster
noun
trust·bust·er
ˈtrəst-ˌbəs-tər
: one and especially a federal officer who seeks to break up trusts by prosecution under the antitrust laws
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