Rattling one's cage is an expression that refers to annoying or teasing someone. In this context, antonyms for rattling one's cage would mean calming or soothing someone. Some of the antonyms that can be used for rattling one's cage include relaxing, pacifying, calming, soothing, mollifying, placating, and appeasing. These words indicate a sense of peace and tranquility, which is the opposite of what rattling one's cage would entail. In some cases, using these antonyms may be desirable to maintain a pleasant atmosphere, particularly in social gatherings or workplace settings.