IMPENITENCE
impenitence, impenitency
(noun) the trait of refusing to repent
Source: WordNet® 3.1
Etymology
Noun
impenitence (usually uncountable, plural impenitences)
the property of being impenitent, of lacking penitence, of not being regretful of wrongs done
Antonym: penitence
Source: Wiktionary
Im*pen"i*tence, n. Etym: [L. impenitentia: cf. F. impénitence.]
Definition: The condition of being impenitent; failure or refusal to
repent; hardness of heart.
He will advance from one degree of wickedness and impenitence to
another. Rogers.
Source: Webster’s Unabridged Dictionary 1913 Edition