naughty
The Italian word 'birichino' is used to describe someone, particularly a child, who is mischievous or naughty. The term can be used in both a loving and playful context or a more disciplinary context, similar to the use of 'naughty' in English.
The child is very naughty today.
This example shows how 'birichino' can be used to describe a person, in this case, a mischievous or naughty child.
Don't be naughty.
Here 'birichino' is used in an imperative sentence advising someone not to be mischievous or naughty.
You have a naughty smile.
In this instance, 'birichino' is used to describe a characteristic attribute, suggesting a cheeky or mischievous smile.