(usually of children) someone who behaves in a manner that the speaker believes is correct; "a well-behaved child
If you describe someone, especially a child, as well-behaved, you mean that they behave in a way that adults generally like and think is correct. well-behaved little boys. behaving in a calm polite way, and not being rude or violent
having good behaviour; not needing correction; polite; correct; conforming to standards of good behaviour; well mannered
(usually of children) someone who behaves in a manner that the speaker believes is correct; "a well-behaved child"