This noun denotes the absence of self-mastery or self-control, particularly in moral and bodily appetites. Jesus uses it in Matthew 23:25 to accuse the Pharisees of inner corruption: while they clean the outside of the cup, inside they are full of ἁρπαγῆς καὶ ἀκρασίας—greed and self-indulgence. In 1 Corinthians 7:5, Paul warns married couples not to deprive each other sexually except briefly for prayer, lest Satan tempt them διὰ τὴν ἀκρασίαν ὑμῶν—because of their lack of self-control. The term encompasses both ethical failures and bodily impulses.