Supernal is the word that is often used to describe something that is divine, celestial or heavenly. However, there are several other synonyms that one can use to describe something that is purely divine. Some of the synonyms for the word include divine, ethereal, celestial, celestial, heavenly, spiritual, angelic, mystical, and godly. Each of these words can help to paint a picture of something that is beyond the physical realm and is beyond the understanding of mere mortals. So, if you want to add a touch of mystique to your writing or conversations, consider using one of the synonyms for supernal instead of the word itself.