primal vs aboriginal

primal is not a noun while aboriginal is a noun.

Word	Noun	Adjective	Verb	Adverb
primal	No	Yes	No	No
aboriginal	Yes	Yes	No	No

As adjectives, primal and aboriginal are synonyms defined as:

primal and aboriginal: having existed from the beginning; in an earliest or original stage or state

Other synonyms of primal include primaeval, primeval, primordial.

primal (noun)	aboriginal (noun)
	an indigenous person who was born in a particular place

primal (adjective)	aboriginal (adjective)
having existed from the beginning; in an earliest or original stage or state	characteristic of or relating to people inhabiting a region from the beginning
serving as an essential component	having existed from the beginning; in an earliest or original stage or state