Adjectives

(a)oracularof or relating to an oracle“able by oracular means to expose a witch”
(s)Delphic, oracularobscurely prophetic“Delphic pronouncements”, “an oracular message”
(s)enigmatic, oracularresembling an oracle in obscurity of thought“the oracular sayings of Victorian poets”, “so enigmatic that priests might have to clarify it”, “an enigmatic smile”