The antonyms for the word "more uniting" are "divisive" and "polarizing". When someone or something is divisive, they create a divide or separation between people, while polarizing indicates a strong division or opposition. Actions or words that are divisive or polarizing can cause conflict and worsen existing tensions between individuals, groups, or communities. These terms are often used in the context of politics, where policies or actions that are divisive or polarizing can lead to greater social and economic disparities. In contrast, when people seek common ground and understanding, they promote unity and cooperation, which can lead to positive and transformative change.