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Adjective: punitory  'pyoo-ni,to-ree [N. Amer], pyoo-ni-t(u-)ree [Brit]
  1. Inflicting punishment
    "The punitory measures were designed to deter future infractions";
    - punitive

See also: correctional, penal, penitentiary, retaliative, retaliatory, retributive, retributory, vindicatory