Rastafarianism vs Rastafarian

Rastafarianism and Rastafarian both are nouns.

Word	Noun	Adjective	Verb	Adverb
Rastafarianism	Yes	No	No	No
Rastafarian	Yes	Yes	No	No

Rastafarianism (noun)	Rastafarian (noun)
a religious cult based on a belief that Ras Tafari (Haile Selassie) is the Messiah and that Africa (especially Ethiopia) is the Promised Land	(Ethiopia) adherents of an African religion that regards Ras Tafari as divine
	follower of Rastafarianism

Rastafarianism (adjective)	Rastafarian (adjective)
	of or pertaining to or characteristic of Rastafarianism or Rastafarians