intensive vs intensiveness

intensive and intensiveness both are nouns.

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

intensive (noun)	intensiveness (noun)
a modifier that has little meaning except to intensify the meaning it modifies	high level or degree; the property of being intense

intensive (adjective)	intensiveness (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