unrepentant — showing no regret for one's wrongdoings

a teenage student sits with arms crossed and chin raised defiantly while facing the principal across the desk. The student's expression shows smugness and complete lack of remorse despite being in trouble. The principal holds up evidence of the student's misbehavior, pointing at torn papers and broken items. The student simply shrugs and rolls their eyes, showing zero concern about the consequences. Other students peek through the doorway with worried expressions, shocked by their classmate's attitude. The principal's face shows frustration at the student's complete lack of accountability. someone remaining completely unrepentant and refusing to show any regret for their wrongdoings