The phrase "in repose" signifies a state of rest or peacefulness. It is often used to describe a person in a relaxed and calm position. Some synonyms for this phrase include "at rest," "relaxed," "calm," "quiet," "serene," "tranquil," and "untroubled." These words all describe a similar state of being where one is free from worry, stress, or agitation. Other synonyms for "in repose" might include "reclining," "lying down," "resting," "dozing," or "napping." Each of these words can help to create a vivid picture in the reader's mind of someone who is comfortable and at peace.