The word "sportspersonlike" is often used to describe someone who behaves in a fair, respectful, and ethical manner in sports. However, there are times when the opposite of sportspersonlike behavior occurs. Some antonyms for the word "sportspersonlike" include unsportsmanlike, rude, disrespectful, and unethical. These words describe behaviors that are not accepted in the sports world, such as cheating, trash-talking, and engaging in aggressive or violent behavior. These types of behaviors not only go against the rules of most sports but also undermine the integrity of the game, and can lead to serious consequences for those involved. Therefore, it's important to strive for sportspersonlike behavior in every aspect of sportsmanship.