Hegemonistic is a term that is often used to describe a country or an individual who uses their power and influence to dominate others. While there are no perfect synonyms for this word, there are several that come close in meaning. These include imperialistic, overbearing, dominating, and controlling. Other terms that might be used include oppressive, manipulative, and authoritarian. One could also use terms like ambitious, powerful, and ambitious, although these do not have the same negative connotations as hegemonistic. Regardless of which term is used, they all indicate a level of dominance and control that is often seen as negative by those on the receiving end.