devilry > define

noun

• Wicked and cruel behavior.
  • synonyms: deviltry
• Reckless or malicious behavior that causes discomfort or annoyance in others.
  • synonyms: mischief, mischief-making, mischievousness, deviltry, devilment, rascality, roguery, roguishness, shenanigan

• (n.) Conduct suitable to the devil; extreme wickedness; deviltry.
• (n.) The whole body of evil spirits.