autocratical

from The Collaborative International Dictionary of English v.0.48

Autocratic \Au`to*crat"ic\, Autocratical \Au`to*crat"ic*al\, a.
   Of or pertaining to autocracy or to an autocrat; absolute;
   holding independent and arbitrary powers of government. --
   {Au`to*crat"ic*al*ly}, adv.
   [1913 Webster]