Coalitionist refers to a person who favors forming alliances or partnerships with others, particularly in politics. Some synonyms for coalitionist include collaborator, ally, partner, affiliate, confederate, accomplice, associate, and supporter. These words indicate a person who works closely with others towards a common goal, or one who is dedicated to building relationships and alliances that promote their interests. Each of these synonyms serves to highlight different nuances of the coalitionist's personality or approach to working with others. Whether you are a coalitionist yourself or simply seeking to describe the actions of others, these synonyms provide a helpful framework for understanding this important concept.