1.  mischievousness(n = noun.attribute) badness, naughtiness - an attribute of mischievous children;
is a kind of disobedience
has particulars: prankishness, rascality, roguishness

2.  mischievousness(n = noun.attribute) impishness, puckishness, whimsicality - the trait of behaving like an imp;
is a kind of fun, playfulness
Derived form adjective mischievous₁

3.  mischievousness(n = noun.act) devilment, devilry, deviltry, mischief, mischief-making, rascality, roguery, roguishness, shenanigan - reckless or malicious behavior that causes discomfort or annoyance in others;
is a kind of misbehavior, misbehaviour, misdeed
has particulars: blaze, hell, monkey business, hooliganism, malicious mischief, vandalism
Derived form adjective mischievous₂