• synonyms


[an-tee-truhst, an-tahy-]
  1. opposing or intended to restrain trusts, monopolies, or other large combinations of business and capital, especially with a view to maintaining and promoting competition: antitrust legislation.
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Origin of antitrust

An Americanism dating back to 1885–90; anti- + trust
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for antitrust


  1. (modifier) mainly US regulating or opposing trusts, monopolies, cartels, or similar organizations, esp in order to prevent unfair competition
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for antitrust


also anti-trust, 1890, U.S., from anti- + trust (n.) in the economic monopoly sense.

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Online Etymology Dictionary, © 2010 Douglas Harper