Pentheance

Pentheance: noun. The obstinate refusal to show penitence, also known as apenitence. Pentheance, or apenitence, is very different from unpenitence, which consists of revoking one's former penitence and going back to pentheance. The word pentheance derives from the character of Pentheus, who refused to acknowledge Dionysus as a god and was ripped apart by his own mother under Bacchic rage.