degenerate vs degenerative

degenerate is a noun but degenerative is not a noun.

Word	Noun	Adjective	Verb	Adverb
degenerate	Yes	Yes	Yes	No
degenerative	No	Yes	No	No

degenerate (noun)	degenerative (noun)
a person whose behavior deviates from what is acceptable especially in sexual behavior

degenerate (adjective)	degenerative (adjective)
unrestrained by convention or morality	(of illness) marked by gradual deterioration of organs and cells along with loss of function

degenerate (verb)	degenerative (verb)
grow progressively worse