1. not feeling or expressing regret, remorse, or contrition for one's actions or beliefs
He remained unrepentant about his controversial statements.
Ele permaneceu impenitente sobre suas declarações controversas.
2. continuing to engage in a particular behavior or practice without shame or guilt
She is an unrepentant coffee drinker who refuses to quit.
Ela é uma bebedora impenitente de café que se recusa a parar.