Mischievous; tending to misbehave or act badly (especially of a child).
"The naughty boy sneaked past his parents to grab an extra cookie from the jar."
In plain English: Naughty means misbehaving by breaking rules or doing something wrong that gets you in trouble.
"The naughty child hid behind the sofa because his mother was coming to check on him."
Usage: Use this word primarily when describing children who are playfully disobedient rather than seriously malicious. It often implies that the bad behavior is cute and forgivable, distinguishing it from harsher terms for genuine wrongdoing.
The word "naughty" comes from the Old French phrase neef a, meaning "not good." It entered Middle English with the sense of being evil or wicked before evolving to describe mischievous behavior.