antitruster

[ an-tee-truhs-ter, an-tahy- ]
/ ˌæn tiˈtrʌs tər, ˌæn taɪ- /

noun Informal.

a person who opposes business trusts and favors unrestrained competition among businesses.

Origin of antitruster

First recorded in 1945–50; antitrust + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019