mischief

1 ENTRIES FOUND:
mischief /ˈmɪstʃəf/ noun
mischief
/ˈmɪstʃəf/
noun
Britannica Dictionary definition of MISCHIEF
[noncount]
1 
: behavior or activity that is annoying but that is not meant to cause serious harm or damage
2 
: a playful desire to cause trouble
3 
somewhat formal : harmful behavior