unwelcome vs unacceptable

unwelcome and unacceptable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unwelcome	No	Yes	No	No
unacceptable	No	Yes	No	No

unwelcome (adjective)	unacceptable (adjective)
not welcome; not giving pleasure or received with pleasure	not acceptable; not welcome
not welcome	(used of persons or their behavior) not acceptable or reasonable
	not conforming to standard usage
	not adequate to give satisfaction