Utopianist refers to a person who pursues an ideal or perfect society. Some synonyms for Utopianist include visionary, idealist, dreamer, optimist, and reformer. A visionary is a person with an original and creative approach to life. An idealist is a person who forms ideals and seeks to promote them. A dreamer is a person who has unrealistic or fantastic ideas or beliefs in imagination. An optimist is a person who tends to expect the best possible outcome. A reformer is a person who advocates for positive change in a specific group or society. While these terms have slightly different meanings, they all describe individuals who use their imagination to think about better futures for themselves and others.