The term "most murdered" suggests a disturbingly high number of homicides, and there are several synonyms that can be used to convey this idea. One such synonym is "massacred," which implies a large group of people being killed at once. Another synonym is "slaughtered," which suggests a violent and brutal killing. "Butchered" is another synonym that conveys a sense of violence and cruelty in the killing, as if the victim was treated like an animal. Finally, "exterminated" can be used to describe a situation where a group of people was targeted for elimination. Each of these synonyms serves to emphasize the severity of the killings and the tragic loss of life that they represent.