not disciplined or conditioned or made adept by training; "an untrained voice"; "untrained troops"; "young minds untrained in the habit of concentration"[ant: trained ]

Not trainable; indocile. [Obs.] --Herbert.

adjective

amateurish , green , ignorant , illiterate , inexperienced , inexpert , nescient , novice , raw , uncultivated , undisciplined , uneducated , unprepared , unqualified , unskilled , untamed , untaught , untutored , wild