The antonyms for "reversion" are progression, advancement, evolution, and innovation. While "reversion" connotes backsliding or regression, these antonyms represent forward movement and growth. Progression is the idea of moving forward in a steady and consistent way, while advancement implies achieving a higher level or status. Evolution suggests the natural development and improvement of something over time, and innovation pertains to the creation of something new and original. In a world that is constantly changing, it is important to move forward and embrace progress, evolution, and innovation rather than reverting back to old ways.