Druidical is an adjective that refers to things related to or characteristic of the Druids, a member of the priestly and learned class among the ancient Celts. However, if you're looking for some synonyms to expand your vocabulary or convey a similar meaning, some options include mystical, pagan, ancient, traditional, spiritual, ceremonial, ritualistic, mythological, magical, esoteric, and shamanic. Each of these words has its own unique connotations and shades of meaning, so be sure to choose the one that best fits the context of your writing or speech. Regardless of which term you use, they all evoke a sense of ancient wisdom, spirituality, and connection to the natural world.