totalitarian vs totalitarianism

totalitarian and totalitarianism both are nouns.

Word	Noun	Adjective	Verb	Adverb
totalitarian	Yes	Yes	No	No
totalitarianism	Yes	No	No	No

totalitarian (noun)	totalitarianism (noun)
an adherent of totalitarian principles or totalitarian government	an ideological belief in the complete and unrestricted power of government.
	a form of government in which the ruler is an absolute dictator (not restricted by a constitution or laws or opposition etc.)

totalitarian (adjective)	totalitarianism (adjective)
of or relating to the principles of totalitarianism according to which the state regulates every realm of life
characterized by a government in which the political authority exercises absolute and centralized control