THESAURUS
Cassandra, Druid, Eeyore, Jeremiah, admonisher, astrologer, augur, calamity howler, cautioner, crystal gazer, cynic, defeatist, divinator, diviner, divineress, flagman, forecaster, foreknower, foreseer, foreshower, foreteller, fortuneteller, geomancer, haruspex, killjoy, lighthouse keeper, lookout, lookout man, malist, monitor, negativist, nihilist, palmist, pessimist, predictor, prefigurer, presager, prognosticator, prophesier, prophet, prophetess, psychic, pythoness, religious prophets, retreatist, seek-sorrow, seer, seeress, sentinel, sentry, signaler, signalman, soothsayer, vates, warner, weather prophet, worrywart
