well bred
adjective
• having or showing good breeding or manners.
• "she was too well bred to say anything"
Similar:
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,
mannerly,