unjustifiable vs unwarrantable

unjustifiable and unwarrantable both are adjectives.

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

As adjectives, unjustifiable and unwarrantable are synonyms defined as:

unjustifiable and unwarrantable: incapable of being justified or explained

Other synonyms of unjustifiable include indefensible, insupportable, unwarranted.

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