Source : Webster's Revised Unabridged Dictionary (1913)

Despotic \Des*pot"ic\, Despotical \Des*pot"ic*al\, a. [Gr. ?:
   cf. F. despotique.]
   Having the character of, or pertaining to, a despot; absolute
   in power; possessing and abusing unlimited power; evincing
   despotism; tyrannical; arbitrary. -- {Des*pot"ic*al*ly}, adv.
   -- {Des*pot"ic*al*ness}, n.

Source : WordNet®

despotic
     adj 1: belonging to or having the characteristics of a despot [syn:
             {despotical}]
     2: ruled by or characteristic of a despot; "moved from a feudal
        to a despotic order"; "his administration was arrogant and
        despotic"
     3: characteristic of an absolute ruler or absolute rule; having
        absolute sovereignty; "an authoritarian regime";
        "autocratic government"; "despotic rulers"; "a dictatorial
        rule that lasted for the duration of the war"; "a
        tyrannical government" [syn: {authoritarian}, {autocratic},
         {dictatorial}, {tyrannical}]