union buster


noun

any of a group of persons hired by a company to disperse picketers, end a strike or job action, etc., especially by violence or intimidation.
any person or group that tries to destroy or weaken a union, as through prosecution or intimidation: The district attorney has a reputation as a union buster.

Related forms

un·ion-bust·ing, adjective, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019