definition of
mischief

[1] #1 mischief n. [mischief-making, mischievousness, deviltry, devilry, devilment, rascality, roguery, roguishness, shenanigan] reckless or malicious behavior that causes discomfort or annoyance in others. wn

[2] #2 mischief n. [maleficence, balefulness] the quality or nature of being harmful or evil. wn