1) Amateur 2) Bush-league 3) Far from professional 4) Inept 5) Inexpert 6) Lacking expertise 7) Unprofessional 8) Unskilled 1) Bush 2) Bush-league 3) Dilettante 4) Dilettantish 5) Inexpert 6) Sciolistic 7) Unprofessional 8) Unskilled 9) Untrained 
• (a.) In the style of an amateur; superficial or defective like the work of an amateur.
Am`a·teur'ish adjective In the style of an amateur; superficial or defective like the work of an amateur. -- 
[adj] - lacking professional skill or expertise
amateur 1 inexpert adjective lacking professional skill or expertise; `a very amateurish job`; `inexpert but conscientious efforts`; `an unskilled painting`
characteristic of an amateur, esp. in having the faults or deficiencies of an amateur; inept: Though an enthusiastic violinist, he gave an amateurish performance.