Nouns

(n)totalitarianan adherent of totalitarian principles or totalitarian government

Adjectives

(a)totalitarian, totalisticof or relating to the principles of totalitarianism according to which the state regulates every realm of life“totalitarian theory and practice”, “operating in a totalistic fashion”
(s)totalitariancharacterized by a government in which the political authority exercises absolute and centralized control“a totalitarian regime crushes all autonomous institutions in its drive to seize the human soul” (Arthur M.Schlesinger, Jr.)