WordWeb Online

1. An attribute of mischievous children
   - naughtiness, badness
    
2. The trait of behaving like an imp
   - impishness, puckishness, whimsicality
    
3. Reckless or malicious behaviour that causes discomfort or annoyance in others
   - mischief, mischief-making, deviltry, devilry, devilment, rascality, roguery, roguishness, shenanigan

Derived forms: mischievousnesses

See also: mischievous

Type of: disobedience, fun, misbehavior [US], misbehaviour [Brit, Cdn], misdeed, playfulness

Encyclopedia: Mischievousness