Unitarian vs religious belief

Unitarian and religious belief both are nouns.

Word	Noun	Adjective	Verb	Adverb
Unitarian	Yes	Yes	No	No
religious belief	Yes	No	No	No

Unitarian (noun)	religious belief (noun)
adherent of Unitarianism	a strong belief in a supernatural power or powers that control human destiny

Unitarian (adjective)	religious belief (adjective)
of or relating to or characterizing Unitarianism