monopolistPronunciation: /məˈnɒp(ə)lɪst/Definition of monopolist noun a person or business that has a monopoly: production by a monopolist is cheapest [as modifier]:the state-owned monopolist generating companyDerivatives monopolisticPronunciation: /-ˈlɪstɪk/ adjective monopolisticallyPronunciation: /-ˈlɪstɪk(ə)li/ adverb monopolist in other Oxford dictionaries Definition of monopolist in the US English dictionary