Adjective > Mischievous

(more mischievous; most mischievous)

1 : causing or tending to cause annoyance or minor harm or damage

a mischievous puppy/child

2 : showing a playful desire to cause trouble

mischievous behavior

a mischievous smile

3 : intended to harm someone or someone’s reputation

mischievous gossip

a mischievous lie

mischievously adverb

She smiled mischievously.

mischievousness noun (noncount)