exploit vs exploitive

exploit is a noun but exploitive is not a noun.

Word	Noun	Adjective	Verb	Adverb
exploit	Yes	No	Yes	No
exploitive	No	Yes	No	No

exploit (noun)	exploitive (noun)
a notable achievement

exploit (adjective)	exploitive (adjective)
	tending to exploit or make use of

exploit (verb)	exploitive (verb)
use or manipulate to one's advantage
draw from; make good use of
work excessively hard