Source : Webster's Revised Unabridged Dictionary (1913)

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.

Source : WordNet®

autocratically
     adv 1: in an overbearingly domineering manner; as a dictator; "this
            manager acts dictatorially toward his colleagues"
            [syn: {dictatorially}, {magisterially}]
     2: in an autocratic manner; "the Czars ruled Russia
        autocratically"