impenitent vs unregenerated

impenitent and unregenerated both are adjectives.

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

impenitent (adjective)	unregenerated (adjective)
not penitent or remorseful	not reformed morally or spiritually
impervious to moral persuasion