The quality of being playfully naughty is mischievousness. I wouldn't put your sister in charge of the balloons for the party — her mischievousness might result in a water balloon attack later!

A rascally child and a practical joker are both known for their mischievousness. Calling someone on the phone to ask if their refrigerator is running doesn't demonstrate your originality — but it does highlight your mischievousness! Think of it as a tendency to make mischief, which is often slightly funny, frequently annoying, and usually harmless.

Definitions of mischievousness

n an attribute of mischievous children

badness, naughtiness
prankishness, rascality, roguishness
the trait of indulging in disreputable pranks
Type of:
the trait of being unwilling to obey

n the trait of behaving like an imp

impishness, puckishness, whimsicality
Type of:
fun, playfulness
a disposition to find (or make) causes for amusement

n reckless or malicious behavior that causes discomfort or annoyance in others

devilment, devilry, deviltry, mischief, mischief-making, rascality, roguery, roguishness, shenanigan
blaze, hell
noisy and unrestrained mischief
monkey business
mischievous or deceitful behavior
hooliganism, malicious mischief, vandalism
willful wanton and malicious destruction of the property of others
Type of:
misbehavior, misbehaviour, misdeed
improper or wicked or immoral behavior

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