unquestionable vs unambiguous

unquestionable and unambiguous both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unquestionable	No	Yes	No	No
unambiguous	No	Yes	No	No

unquestionable (adjective)	unambiguous (adjective)
incapable of being questioned	having or exhibiting a single clearly defined meaning
not counterfeit or copied	admitting of no doubt or misunderstanding; having only one meaning or interpretation and leading to only one conclusion
not open to question