impenitentEnglishOxford English Thesaurusimpenitent adjective I am quite impenitent at having encouraged her rebellion: unrepentant, unrepenting, without regret/remorse, uncontrite, remorseless, unremorseful, shameless, unashamed, unblushing, unapologetic, unabashed, brazen, conscienceless. ▷antonyms penitent.impenitent Oxford Dictionary of English