intelligence vs intelligent

intelligence is a noun but intelligent is not a noun.

Word	Noun	Adjective	Verb	Adverb
intelligence	Yes	No	No	No
intelligent	No	Yes	No	No

intelligence (noun)	intelligent (noun)
the operation of gathering information about an enemy
the ability to comprehend; to understand and profit from experience
information about recent and important events
secret information about an enemy (or potential enemy)
a unit responsible for gathering and interpreting information about an enemy

intelligence (adjective)	intelligent (adjective)
	having the capacity for thought and reason especially to a high degree
	endowed with the capacity to reason
	exercising or showing good judgment
	possessing sound knowledge