The quality or state of being unrepentant; impenitence.

The action of making or becoming obdurate, hardened in sin, or insensible to moral influence; the fact or condition of being obdurate…

(un-, prefix1 affix 6 affix 4.)

The quality or state of being impenitent.

Confirmation in evil or ignorance; the state of being so confirmed; stubbornness, obduracy.

The state or quality of being obdurate; stubbornness, resistance to all entreaty; persistence in wrongdoing or evil.

Absence of repentance; non-repentance.

= obduracy, n. 1.

persistent refusal to repent or regret one's actions; impenitence.

The fact or condition of being impenitent; want of penitence or repentance; hardness of heart; obduracy.

obduracy.