pen·i·tent (pěn'ĭ-tənt) adj. Feeling or expressing remorse for one's misdeeds or sins. n.
One who is penitent.
A person performing penance under the direction of a confessor.
[Middle English, from Old French, from Medieval Latin pēnitēns, pēnitent-, from Latin paenitēns, present participle of paenitēre, to repent.] pen'i·tent·ly adv.