Satanic \Sa*tan"ic\, Satanical \Sa*tan"ic*al\, a. [Cf. F. satanique, Gr. ?.] Of or pertaining to Satan; having the qualities of Satan; resembling Satan; extremely malicious or wicked; devilish; infernal. ``Satanic strength.'' ``Satanic host.'' --Milton. Detest the slander which, with a Satanic smile, exults over the character it has ruined. --Dr. T. Dwight. -- {Sa*tan"ic*al*ly}, adv. -- {Sa*tan"ic*al*ness}, n.