Most regressive is an adjective that describes something that is retrogressive, backward or opposed to progress. Antonyms for the word most regressive include terms such as innovative, progressive, advanced, modern, and futuristic. These are words that signify progress, breaking new ground, and pushing the boundaries. Instead of focusing on the past, these words look towards the future, encouraging exploration, experimentation, and growth. It's important to consider these antonyms when describing any situation or concept in order to convey a more balanced and nuanced view of the topic at hand.