The opposite of "puts front" could be "puts back" or "recedes." When you put something front and center, you bring it to the forefront and give it prominence. Conversely, when you put something back, you move it away from the spotlight and give it less attention. In certain contexts, putting something back could also imply a sense of retreat or withdrawal. On the other hand, to recede is to move further away or to become less prominent. This could be used to indicate a diminishing importance or relevance. Both "puts back" and "recedes" are antonyms to "puts front" and can convey different levels of importance, focus, and visibility.