Noun
Verb (する, transitive)
Usually written in kana
1. mischief; prank; trick; practical joke
ただの悪戯ではないようなのです。It seems that it is not just a prank.
Adjective (な)
Usually written in kana
2. mischievous; naughty
その悪戯な笑みを思い出す。I remember that mischievous smile.
Noun
Verb (する, transitive)
Humble
Usually written in kana
3. pastime; hobby
4. playing with (e.g. a lighter); fooling around with; messing around with; amusing oneself with; tampering with
Noun
Verb (する, intransitive)
Usually written in kana
5. lewd behaviour; sexual misconduct; sexual assault; molestation; rape
酔って寝ている女性にいたずらするのは犯罪だ。Molesting a woman who is drunk and asleep is a crime.