pertaining to habitually inappropriate or undesirable behavior
Every time she drinks alcohol, she is badly behaved.
If he were an ordinary man instead of a nobleman, they would call him badly behaved.
Angèle is a little vixen, a badly behaved, spoilt child, I fear.
Of course, every girl must respect herself; there's nothing I dislike more than a badly behaved girl.
We are not generally so badly behaved, though you are the only lady that has so far honoured Growlers' with a visit.