List of cryptic synonyms and cryptic related words.
abstruse, arcane, between the lines, cabalistic, cabbalistic, censored, classified, close, closed, concealed, covert, dark, delitescent, dormant, enigmatic, equivocal, esoteric, evasive, hermetic, hibernating, hidden, hush-hush, incomprehensible, inexplicable, inscrutable, latent, lurking, muffled, murky, mysterious, mystic, mystical, mystifying, nebulous, obfuscated, obscure, obscured, occult, opaque, perplexing, possible, potential, puzzling, recondite, restricted, riddling, secret, secretive, sleeping, smothered, sphinxlike, stifled, strange, submerged, suppressed, tenebrous, top secret, ulterior, unbreatheable, unclear, under security, under the surface, under wraps, underlying, undisclosable, undisclosed, undivulgable, undivulged, unfathomable, uninformative, unmanifested, unrevealable, unrevealed, unspoken, untellable, untold, unutterable, unuttered, unwhisperable, vague, veiled, virtual