mischievousness

Noun	1.	mischievousness - an attribute of mischievous children Synonyms: naughtiness, badness
	2.	mischievousness - the trait of behaving like an imp Synonyms: impishness, puckishness, whimsicality
	3.	mischievousness - reckless or malicious behavior that causes discomfort or annoyance in others Synonyms: devilment, mischief, mischief-making, roguery, shenanigan, roguishness, devilry, deviltry, rascality

badness, disobedience, naughtiness, prankishness, rascality, roguishness