divinatory in WordNet English dictionary

1. based primarily on surmise rather than adequate evidence
   "theories about the extinction of dinosaurs are still highly conjectural"; "the supposed reason for his absence"; "suppositious reconstructions of dead languages"; "hypothetical situation"
   conjectural  divinatory  hypothetical  hypothetic  supposed  suppositional  suppositious  supposititious 
   
2. resembling or characteristic of a prophet or prophecy
   "the high priest's divinatory pronouncement"; "mantic powers"; "a kind of sibylline book with ready and infallible answers to questions"
   divinatory  mantic  sibylline  sibyllic  vatic  vatical