The antonyms for the phrase "stay in place" are many and varied, and they all have one thing in common - movement. Antonyms for "stay" include "move," "go," "leave," "depart," "travel," and "venture." Antonyms for "in place" include "out of place," "displaced," "dislodged," "unfixed," "unmoored," and "unstable." When something is staying in place, it is remaining stationary, immobile, and fixed. When something is not staying in place, it is moving, shifting, and changing. Whether it's a person, a thing, or an idea, the opposite of staying in place is movement and progress.