im·pen·i·tence /(ˌ)ɪmˈpɛnətən(t)s/
不知悔改,頑固
Im·pen·i·tence n. 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.
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impenitence
n : the trait of refusing to repent [syn: impenitency]