The antonyms for the word "conservativist" are primarily "liberal" and "progressive." A liberal is someone who advocates for individual rights, equality, and democracy. They believe in free elections, a fair judicial system, and freedom of speech, religion, and assembly. Progressives, on the other hand, are people who want societal change and believe in social and political activism. They prioritize civil liberties, anti-racism, public healthcare, and environmental protection. Although conservatives tend to be cautious about change and prefer traditional values and institutions, liberals and progressives tend to lobby for transformation and advancement in society. The words "open-minded," "free-spirited," and "innovative" can also describe antonyms to the word "conservativist.