punitive

[1]	ruffian , hoodlum , hooligan , delinquent , tough , thug , vandal , yahoo , barbarian , (Colloq) goon , mug

adj.

[1]	punitory , chastening , castigatory , disciplinary , retributive , punitory , retaliatory , correctional
[2]	inferior , rotten , unimportant , worthless , bad , poor , awful , (Colloq) lousy