Definition of "diabolic" [di•a•bol•ic]

• Showing wickedness typical of a devil. (adjective)
• Extremely evil or cruel. (adjective)

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• "In her presence and before the whole household he repeated his false story, and clung to it with a bitter effrontery that we may well call diabolic, remembering how the nervous terror of punishment and exposure sinks the angel in man."
• "These examples are but typical of myriads in cathedrals and abbeys and parish churches throughout Europe; and all served to impress upon the popular mind a horror of everything called diabolic, and a hatred of those charged with it."
• "But to accomplish this work, which we may also call diabolic, isn't an androgynous genius necessary?"