St. Athanasius vs Roman Catholic

St. Athanasius and Roman Catholic both are nouns.

Word	Noun	Adjective	Verb	Adverb
St. Athanasius	Yes	No	No	No
Roman Catholic	Yes	Yes	No	No

St. Athanasius (noun)	Roman Catholic (noun)
(Roman Catholic Church) Greek patriarch of Alexandria who championed Christian orthodoxy against Arianism; a church father, saint, and Doctor of the Church (293-373)	the Christian Church based in the Vatican and presided over by a pope and an episcopal hierarchy
	a member of the Roman Catholic Church

St. Athanasius (adjective)	Roman Catholic (adjective)
	of or relating to or supporting Romanism