not regenerate; not renewed in heart and mind or reborn in spirit; unrepentant: an unregenerate sinner. · refusing to believe in the existence of God: an unregenerate atheist; an unregenerate skeptic. · unconvinced by or unconverted to a particular religion, sect, or movement; unreconstructed. · persisting in the holding of prior ... Found on https://www.infoplease.com/dictionary/unregenerate