Synonyms for Foreshadowing (same or very similar meaning)
WordNet sense 1 (the act of providing vague advance indications; representing beforehand):
adumbration, prefigurationWordNet sense 2 (indistinctly prophetic):
adumbrative, prefigurativeWordNet sense 3 (foretelling events as if by supernatural intervention):
prophetic, propheticalFrom the ODE community, based on WordNetadd/edit