Big Huge Thesaurus

mischievousness

noun

• naughtiness
• badness
• impishness
• puckishness
• whimsicality
• mischief
• mischief-making
• deviltry
• devilry
• devilment
• rascality
• roguery
• roguishness
• shenanigan
• disobedience
• fun
• misbehavior
• misbehaviour
• misdeed
• playfulness

sounds kind of like

• misfeasance
• monkey business