unconnected vs connectedness

unconnected is not a noun while connectedness is a noun.

Word	Noun	Adjective	Verb	Adverb
unconnected	No	Yes	No	No
connectedness	Yes	No	No	No

unconnected (noun)	connectedness (noun)
	a relation between things or events (as in the case of one causing the other or sharing features with it)
	the state of being connected

unconnected (adjective)	connectedness (adjective)
not joined or linked together
lacking orderly continuity
not connected by birth or family