Delphic
Delphic , adjective
[Latin Delphicus, from Greek Delfiko`s, from Delfoi`, Latin Delphi, a town of Phocis, in Greece, now Kastri.]
1.
(Greek Antiquities) Of or relating to Delphi, or to the famous oracle of that place.
2.
Ambiguous; mysterious.
If he is silent or delphic.