unacknowledged vs recognition

unacknowledged is not a noun while recognition is a noun.

Word	Noun	Adjective	Verb	Adverb
unacknowledged	No	Yes	No	No
recognition	Yes	No	No	No

unacknowledged (noun)	recognition (noun)
	designation by the chair granting a person the right to speak in a deliberative body
	the process of recognizing something or someone by remembering
	an acceptance (as of a claim) as true and valid
	coming to understand something clearly and distinctly
	approval
	the explicit and formal acknowledgement of a government or of the national independence of a country
	(biology) the ability of one molecule to attach to another molecule that has a complementary shape
	the state or quality of being recognized or acknowledged

unacknowledged (adjective)	recognition (adjective)
not recognized or admitted
not openly acknowledged