penitent

adjective
Definition of penitent:

feeling or expressing remorse for misdeeds


Synonyms of penitent:

repentant, sorry, regretful, remorseful, contrite, apologetic, rueful, ashamed, penitential, sorrowful


Opposite/Antonyms of penitent:

shameless, unapologetic, happy, unrepentant, remorseless, impenitent, unashamed, unremorseful


Sentence/Example of penitent:

The penitent then leaves the confessional and goes and prays his penance in the church.