unpenitent
/(ˌ)ʌnˈpɛnɪt(ə)nt/Now somewhat rare
adjective
Not penitent; unrepentant.
noun
With the and plural concord: unpenitent people as a class. Also as a count noun: an unpenitent person.
Origin
Mid 16th century; earliest use found in John Rastell. From un- + penitent, after post-classical Latin impaenitent-, impaenitens impenitent.