intense vs intensive

intense is not a noun while intensive is a noun.

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

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

intense (adjective)	intensive (adjective)
possessing or displaying a distinctive feature to a heightened degree	of agriculture; intended to increase productivity of a fixed area by expending more capital and labor
(of color) having the highest saturation	tending to give force or emphasis
extremely sharp or severe	characterized by a high degree or intensity; often used as a combining form