despotical
Des*pot"ic, Des*pot"ic*al, a. Etym: [Gr. despotique.] Defn: 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.