The word "most badmannered" suggests someone who lacks etiquette and behaves rudely. However, there are several antonyms to this word that describe people who display exemplary manners and behavior. The antonyms could be polite, courteous, gracious, respectful, genteel, refined, considerate, and well-mannered. These traits define a person who is respectful of others, shows empathy, and has a positive attitude towards everyone they interact with. Such individuals are well-liked and respected by everyone, and their behavior reflects the values of a civilized society. Therefore, it is important to cultivate these positive traits in oneself to earn admiration and respect from others.