aggregative vs collective

aggregative is not a noun while collective is a noun.

Word	Noun	Adjective	Verb	Adverb
aggregative	No	Yes	No	No
collective	Yes	Yes	No	No

aggregative (noun)	collective (noun)
	members of a cooperative enterprise

aggregative (adjective)	collective (adjective)
formed of separate units gathered into a mass or whole	forming a whole or aggregate
	done by or characteristic of individuals acting together
	set up on the principle of collectivism or ownership and production by the workers involved usually under the supervision of a government