anthropology vs exogamous

anthropology is a noun but exogamous is not a noun.

Word	Noun	Adjective	Verb	Adverb
anthropology	Yes	No	No	No
exogamous	No	Yes	No	No

anthropology (noun)	exogamous (noun)
the social science that studies the origins and social relationships of human beings

anthropology (adjective)	exogamous (adjective)
	pertaining to or characterized by the custom of marrying only outside the limits of a clan or tribe
	characterized by or fit for fertilization by a flower that is not closely related