The Collaborative International Dictionary of English v.0.48:
Cryptically \Cryp"tic*al*ly\, adv. Secretly; occultly; in a manner so as to hide or obscure meaning. [1913 Webster +PJC]WordNet (r) 3.0 (2006):
cryptically adv 1: in a cryptic manner; "we will meet again," he said cryptically [syn: cryptically, enigmatically, mysteriously]