Retrogrades are the planets that appear to move backward in their orbits from Earth's perspective. The antonyms for retrogrades can include words like forwards, advance, progress, advance or advance forward motion. These words represent the opposite of retrogrades, which signify moving or progressing in reverse. With strong antonyms, there is a clear opposition between retrogrades and the concepts of advancement and progress. These antonyms can be used to describe the movement of the planets or the progress of a person or society. In all cases, the antonyms convey a sense of forward movement, growth, and positive change instead of reversal or regression.