maximalistPronunciation: /ˈmaksɪm(ə)lɪst/Definition of maximalist noun (especially in politics) a person who holds extreme views and is not prepared to compromise. adjective of or denoting an extreme opinion:the maximalist interpretation is more promisingDerivatives maximalism noun Origin: early 20th century: from maximal, on the pattern of Russian maksimalistmaximalist in other Oxford dictionaries Definition of maximalist in the US English dictionary