1) Expert on the future 2) Forecaster 3) Golfer palmer 4) Illusionist 5) One who warned Caesar 6) Predictor 7) Prognosticator 8) Prophet 9) Seer 10) Visionary Found on https://www.crosswordclues.com/clue/soothsayer
Sooth'say`er noun 1. One who foretells events by the art of soothsaying; a prognosticator. 2. (Zoology) A mantis. Found on http://www.encyclo.co.uk/webster/S/145