modernist Syllabification: (mod·ern·ist)Pronunciation: /ˈmädərnist/Definition of modernist noun a believer in or supporter of modernism, especially in the arts. adjective of or associated with modernism, especially in the arts. Derivatives modernisticPronunciation: /ˌmädərˈnistik/ adjective modernist in other Oxford dictionaries Definition of modernist in the British & World English dictionary