The antonyms for the word "un cool" includes terms such as popular, fashionable, trendy, stylish, and hip. These words describe someone who is admired and respected by his or her peers, keeping up with the latest trends and fashions while standing out from the crowd. Unlike the "un cool" individuals, who may be considered outcasts or social outcasts, the opposite of this term suggests that someone is well-liked and respected, with a strong social presence and positive reputation. These antonyms highlight the importance of social skills and being able to fit in with your peers, while still maintaining your unique personality and style.