Definition of "demoniacal" [demoniacal]

• Pertaining to, characteristic of, or produced by a demon or evil spirit; devilish or fiendish. (adjective)

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• "With the next breath it shrieks in demoniacal fury, "We must have a victim for the sacrifice, and you shall pay! pay! pay!""
• "-- The word rendered "devils," is always used for those spiritual agents employed in demoniacal possessions -- never for the ordinary agency of Satan in rational men."
• "Fed by this stream of thought, and developed in the warm atmosphere of medieval devotion, the idea of demoniacal possession as the main source of lunacy grew and blossomed and bore fruit in noxious luxuriance."