Impenitent
/ɪmˈpenɪtənt/
Definition 1 of 1
Pro Tip 1/3Negative Connotation
Impenitent has a negative feeling, suggesting stubbornness in not admitting wrong. 
Despite the evidence, the corrupt official was impenitent.
Pro Tip 2/3Character Insight
Use 'impenitent' to describe someone's character when they don't show remorse consistently. 
The impenitent student disrupted class again, undeterred by detention.
Pro Tip 3/3Emotional Weight
When you use 'impenitent', it often adds an emotional layer to your message. 
Her impenitent laughter at the situation only made things worse.