insanely vs intensive

insanely is not a noun while intensive is a noun.

Word	Noun	Adjective	Verb	Adverb
insanely	No	No	No	Yes
intensive	Yes	Yes	No	No

insanely (noun)	intensive (noun)
	a modifier that has little meaning except to intensify the meaning it modifies

insanely (adjective)	intensive (adjective)
	of agriculture; intended to increase productivity of a fixed area by expending more capital and labor
	tending to give force or emphasis
	characterized by a high degree or intensity; often used as a combining form

insanely (adverb)	intensive (adverb)
in an insane manner
(used as intensives) excessively