A proverbial expert, clairvoyant, diviner, forecaster, foreseer and oracle are some of the synonyms for prophesier. Prophesier is a person who predicts or foretells the future. Some synonyms of prophesier like forecaster or fortune-teller suggest that they specialize in predicting the future. On the other hand, an oracle is someone who is believed to have a direct line of communication with the divine and can give advice and predictions based on their contact with a higher power. A clairvoyant, diviner, and seer might be used to describe someone who has supernatural abilities to see or sense the future. Whatever word is used, they all suggest a certain level of spiritual authority and insight into what is to come.