1. deliberately obscure or ambiguous in meaning; cryptic
Usage: often capitalized when referring to the ancient Oracle at Delphi
2. relating to the ancient Greek oracle at Delphi
Usage: historical; usually capitalized

Examples

• The professor’s delphic response left students more confused than before.
• Her delphic smile suggested she knew more than she was saying.
• The CEO’s delphic statement about layoffs worried employees.
• Ancient Greeks sought guidance from the Delphic Oracle.
• The politician gave a delphic answer that could be interpreted multiple ways.
• His delphic pronouncements were famous for their ambiguity.