The Oxford Thesaurus An A-Z Dictionary of Synonyms - fantasy n.

1) imagination, fancy, creativity, inventiveness, creativity, originality: We encourage the children to give free rein to their fantasy. 2) vision, hallucination, illusion, mirage, delusion, chimera, dream, day-dream, (flight of) fancy, pipedream: Her fantasy is to become prime minister. 3) make-believe, invention, cabrication, fiction, masquerade, fable, concoction, pretence: His story about being an orphan is pure fantasy.