mischievous

1 ENTRIES FOUND:
mischievous /ˈmɪstʃəvəs/ adjective
mischievous
/ˈmɪstʃəvəs/
adjective
Britannica Dictionary definition of MISCHIEVOUS
[more mischievous; most mischievous]
1 
: causing or tending to cause annoyance or minor harm or damage
2 
: showing a playful desire to cause trouble
3 
: intended to harm someone or someone's reputation

— mischievousness

noun [noncount]