unendurable vs unacceptable

unendurable and unacceptable both are adjectives.

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

unendurable (adjective)	unacceptable (adjective)
incapable of being tolerated or endured	not acceptable; not welcome
	(used of persons or their behavior) not acceptable or reasonable
	not conforming to standard usage
	not adequate to give satisfaction