B2 adjective /ˈmɪstʃɪvəs/
Mischievous
顽皮的; 淘气的; 调皮的
Meaning
playfully naughty; causing minor trouble; impish
Example
The mischievous child hid his sister's favorite toy.
顽皮的孩子把他姐姐最喜欢的玩具藏了起来。