The term "ill-bred" is usually used to describe someone who has had little or no education and is lacking in manners or social skills. Antonyms for the phrase "more ill-bred" can include words like cultured, refined, genteel, polished, well-mannered, well-bred, sophisticated, civilized, and urbane. These words all suggest a level of sophistication and education, which is completely opposite to someone who is labeled as "ill-bred." Individuals who are well-bred have been taught good manners and social skills, and they are often perceived as more attractive, intelligent, and interesting. Therefore, it's always better to be referred to as "well-bred" than "ill-bred.