unrelated vs unconnected

unrelated and unconnected both are adjectives.

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

unrelated (adjective)	unconnected (adjective)
not connected by kinship	not joined or linked together
lacking a logical or causal relation	lacking orderly continuity
	not connected by birth or family