Mischievous
Part of speech: adjective
Definition: Causing mischief, troublesome, cheeky, badly behaved.
Example sentence: I look at where I've come from and realize that I'm lucky to make it out. I was a mischievous kid and I understand the whole reasoning of youth today because I didn't have much to do in the afternoon after school.
Prankish
Part of speech: adjective
Definition: Given to or characterized by impishness or playfulness; mischievous.