"Prodigal" is an image, a characteristic of a person who has a false worldview, commits spiritual adultery, betrayal of the Will of God by following false doctrines, dogmas, sinful erroneous references to belief in other "gods", to the worship of various religious, political and other idols and idols.
Also in the literal sense - a person who is promiscuous, morally corrupt, adulterer, bigamist.