Longman Dictionary of Contemporary English
well-brought-up
adjective
EXAMPLES FROM CORPUS
▪ A well-brought-up young lady and a virgin to boot shouldn't be having such thoughts.
Usage examples of "well-brought-up".
It was like a well-brought-up cousin of that daft carry-on with the forefinger and the pinkie that metalheads did.
I will only talk in abstract terms, so there's complete deniability, but I'm sure that your well-honed and well-brought-up intellect will understand.