Extropic is a rare word which means relating to the concept of positive change and improvement in the universe. Some potential synonyms for extropic might include terms such as transformative, progressive, creative, evolutionary, and innovative. These words all imply a sense of growth and positive change, which is at the core of the extropic concept. Additionally, words like visionary, forward-thinking, inventive, and pioneering all capture the essence of extropic in different ways. Overall, synonyms for extropic are words that highlight the positive, forward-looking nature of this concept and the potential for transformation and improvement that it embodies.