Home › Words › U › ultimatistultimatistultimatist means A proponent of ultimatism.EtymologyFrom ultimate + -ist.nounA proponent of ultimatism.Definitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.ultimatism 76% match — A radical Bolshevik policy demanding that an ultimatum be sent to Bolshevik deputies of the duma, instructing them to be uncompromisingly radical. vs ultimatist →ultimism 64% match — The quasireligious proposition that there is some ultimate phenomenon that is the source of good. vs ultimatist →ultime 63% match — Ultimate; final. vs ultimatist →supremist 62% match — A person who is supreme. vs ultimatist →utopianist 61% match — A believer in utopianism. vs ultimatist →ultramontanist 61% match — A supporter of ultramontanism. vs ultimatist →impossibilist 60% match — A proponent of impossibilism. vs ultimatist →alternativist 59% match — A supporter of alternativism. vs ultimatist →