1.AdjectivePertaining to demons or evil spirits; demoniac.
"Convinced that his uncle was a warlock, he rifled through his attic, looking for demonic artifacts.; Once he had grasped the controls, he unleashed a demonic laugh that made his hostages shudder."
2.AdjectivePertaining to daemons in ancient Greek thought; concerning supernatural ‘genius’.
3.AdjectiveExtremely cruel or evil; abhorrent or repugnant; diabolical.