To feel pain, sorrow, or regret for something one has done or left undone.Especially, to experience such sorrow for sin as produces amendment of life; be grieved over one's past life, and seek forgiveness; be penitent. See repentance.To do penance.To change the mind or course of conduct in consequence of regret or dissatisfaction with something that is past.To express sorrow for something past.=Syn. 1–4. See repentance.To remember or regard with contrition, compunction, or self-reproach; feel self-accusing pain or grief on account of: as, to repent rash words; to repent an injury done to a neighbor.To be sorry for or on account of.n. Repentance.In botany, creeping; growing prostrate along the ground, or horizontally beneath the surface, and rooting progressively.In zoology, creeping, as an animalcule; specifically, of or pertaining to the Repentia.