Adjective- describing someone or something that is mischievous, or up to shenanigans or tomfoolery; acting as a deviant,
jokester,
trickster; one who joshes around or engages in
ballyhoo; rascal-like (mild sass optional)
As a child, young
Charles was well-behaved, polite, and followed all
the rules; however, as he grew up, he became
awnry.