connexion vs unconnected

connexion is a noun but unconnected is not a noun.

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

connexion (noun)	unconnected (noun)
the act of bringing two things into contact (especially for communication)
shifting from one form of transportation to another
an instrumentality that connects
the process of bringing ideas or events together in memory or imagination
a relation between things or events (as in the case of one causing the other or sharing features with it)
a connecting shape

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