unwarrantable vs unjustifiable

unwarrantable and unjustifiable both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unwarrantable	No	Yes	No	No
unjustifiable	No	Yes	No	No

As adjectives, unwarrantable and unjustifiable are synonyms defined as:

unwarrantable and unjustifiable: incapable of being justified or explained

Other synonyms of unwarrantable include indefensible, insupportable, unwarranted.

unwarrantable (adjective)	unjustifiable (adjective)
incapable of being justified or explained	incapable of being justified or explained