The antonyms for the word "more lowbred" are refined, cultured, sophisticated, elegant, polished, urbane, civilized, genteel, aristocratic, and suave. These words describe people who possess high levels of manners, breeding, and education. An individual who is refined is mindful of their behavior and conducts themselves with grace, while a cultured person is well-versed in art, literature, and music. Sophisticated people have extensive knowledge of the world and possess excellent taste in fashion and food. Elegant and polished individuals are characterized by their refined appearance and impeccable manners, and urbane people are sophisticated, suave, and knowledgeable in urban lifestyles. In contrast, someone who is lowbred lacks social graces, refinement, and sophistication.