Fatidical is an adjective that is often used to describe predictions or prophecies that are believed to be true or inevitable. However, there are a number of synonyms that can be used to convey the same meaning. Some possible alternatives to fatidical include prophetic, prescient, clairvoyant, divinatory, foresighted, oracular, and predictive. Each of these words implies a sense of foreknowledge or insight into the future and can be used to describe a variety of situations, from weather forecasts to political predictions. Ultimately, the choice of which synonym to use will depend on the specific context in which the word is being used and the particular nuance of meaning that the author wishes to convey.