The term "most three sided" refers to something that has three main aspects or components. There are several synonyms that can be used to describe this kind of object or situation. One such word is "triangular," which refers specifically to the shape of an object with three sides and three corners. Another synonym is "trilateral," which is used more commonly to refer to political or diplomatic relationships between three parties. "Triple" is also a useful synonym, indicating that something occurs or is made up of three different elements. Finally, "threesome" is a colloquial term that can be used to describe a situation involving three people or entities.