unregenerated vs obdurate

unregenerated and obdurate both are adjectives.

Word	Noun	Adjective	Verb	Adverb
unregenerated	No	Yes	No	No
obdurate	No	Yes	No	No

unregenerated (adjective)	obdurate (adjective)
not reformed morally or spiritually	showing unfeeling resistance to tender feelings
	stubbornly persistent in wrongdoing