indefensible vs unreasonable

indefensible and unreasonable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
indefensible	No	Yes	No	No
unreasonable	No	Yes	No	No

indefensible (adjective)	unreasonable (adjective)
incapable of being justified or explained	not reasonable; not showing good judgment
(of theories etc) incapable of being defended or justified	beyond normal limits
not able to be protected against attack