Definition of old Adam in English:

old Adam

Pronunciation /ˌəʊl(d) ˈadəm/

noun

  • Chiefly with the. The biblical Adam as a representative of the sinful and unregenerate character of human nature, which in traditional Western Christian theology is overcome by a person's acceptance of Christ; (allusively) sinful character or nature, especially as the cause of wild and reprehensible behaviour. Compare "Adam", "old man".

Origin

Late Middle English. From old + the name of Adam, after post-classical Latin vetus Adam.