inexcusable vs indefensible

inexcusable and indefensible both are adjectives.

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

inexcusable (adjective)	indefensible (adjective)
without excuse or justification	incapable of being justified or explained
not excusable	(of theories etc) incapable of being defended or justified
	not able to be protected against attack