What Negative connotation for unattractive?

A negative connotation for "unattractive" is "ugly," which implies not only a lack of physical appeal but can also carry a sense of harsh judgment. Other terms like "unsightly" or "repulsive" also convey strong disapproval and can evoke feelings of disdain. These Words suggest a more severe or critical assessment of someone's appearance, often dehumanizing them in the process.