-isatinic-

{ } a. [ Cf. F. satanique, Gr. &unr_;. ] Of or pertaining to Satan; having the qualities of Satan; resembling Satan; extremely malicious or wicked; devilish; infernal. “Satanic strength.” “Satanic host.” Milton. [ 1913 Webster ]

Detest the slander which, with a Satanic smile, exults over the character it has ruined. Dr. T. Dwight. [ 1913 Webster ]

-- Sa*tan"ic*al*ly, adv. -- Sa*tan"ic*al*ness, n. [ 1913 Webster ]