immediacy vs immediate

immediacy is a noun but immediate is not a noun.

Word	Noun	Adjective	Verb	Adverb
immediacy	Yes	No	No	No
immediate	No	Yes	No	No

immediacy (noun)	immediate (noun)
the quickness of action or occurrence
lack of an intervening or mediating agency
immediate intuitive awareness

immediacy (adjective)	immediate (adjective)
	having no intervening medium
	very close or connected in space or time
	performed with little or no delay
	of the present time and place
	immediately before or after as in a chain of cause and effect