noun

a person who claims to have a supernatural ability to perceive events in the future or beyond normal sensory contact.

she has had a message from a clairvoyant that her son is alive and well

psychic,fortune teller,forecaster of the future,crystal gazer,prophet,seer,soothsayer,oracle,medium,spiritualist,telepathist,telepath,mind reader,palmist,palm reader,chiromancer,chirosophist,spiritist,palmister