intensive vs madly

intensive is a noun but madly is not a noun.

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

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

intensive (adjective)	madly (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

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