intensive vs simply

intensive is a noun but simply is not a noun.

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

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

intensive (adjective)	simply (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)	simply (adverb)
	and nothing more
	in a simple manner; without extravagance or embellishment
	absolutely; altogether; really
	(used for emphasis) absolutely