well-bred
Definitions
Having or showing good manners and refinement as a result of good upbringing.
Bred from a line of high-quality or purebred stock.
Examples
The well-bred young man always remembered to hold the door open for others.
She was known for her well-bred manners and ability to navigate any social situation with grace.
The horse was clearly well-bred, displaying a calm temperament and an elegant gait.
Synonyms
polite refined cultured gentlemanly ladylike civilized courteous