
Brat
Negative Connotation
Brat often implies poor behavior and a lack of discipline; it can be insulting.

The noisy brat disrupted the whole classroom.
Usually Juvenile
'Brat' is most commonly used to describe children, not adults.

That brat keeps throwing his food.
Informal Use
It's a casual word, more suitable for informal conversations and not formal situations.

My cousin is such a brat sometimes.
Compare with
BraggartImpPestRascalScampTroublemakerWhippersnapper
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