religiosity vs religious

religiosity and religious both are nouns.

Word	Noun	Adjective	Verb	Adverb
religiosity	Yes	No	No	No
religious	Yes	Yes	No	No

religiosity (noun)	religious (noun)
exaggerated or affected piety and religious zeal	a member of a religious order who is bound by vows of poverty and chastity and obedience

religiosity (adjective)	religious (adjective)
	having or showing belief in and reverence for a deity
	of or relating to clergy bound by monastic vows
	concerned with sacred matters or religion or the church
	extremely scrupulous and conscientious