well bred 
adjective
Having or showing good breeding or manners: she was too well bred to say anything a well-bred brood mare...
- She noted that most of Brian's friends were not the amiable rogues she had imagined them to be, but quite the contrary: a bit stiff in manner, well-bred, polite, and arrogant; as were most of the ladies.
- Ultimately, the two criminals were tried for the same crime, but one got a reduced sentence on account of his well-bred looks and manners.
- The lean, athletic actress with the well-bred manner became an instant star.
Synonyms
well brought up, well mannered, well behaved, polite, civil, courteous, respectful, deferential;
ladylike, gentlemanly, chivalrous, gallant, genteel, cultivated, gracious, obliging, considerate, thoughtful, urbane, formal, proper, refined, polished
dated mannerly