Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

525} latency, inexpression†; hidden meaning, occult meaning; occultness, mystery, cabala†, anagoge†; silence &c (taciturnity) 585; concealment &c 528; more than meets the eye, more than meets the ear; Delphic oracle; le dessous des cartes [Fr.], undercurrent. implication, logical implication; logical consequence; entailment. allusion, insinuation; innuendo &c 527; adumbration; something rotten in the state of Denmark [Hamlet]. snake in the grass &c (pitfall) 667; secret &c 533. darkness, invisibility, imperceptibility. V. be latent &c adj.; lurk, smolder, underlie, make no sign; escape observation, escape detection, escape recognition; lie hid &c 528. laugh in one's sleeve; keep back &c (conceal) 528. involve, imply, understand, allude to, infer, leave an inference; entail; whisper &c (conceal) 528. [understand the implication] read between the lines. Adj. latent; lurking &c v.; secret &c 528; occult; implied &c v.; dormant; abeyant. unapparent, unknown, unseen &c 441; in the background; invisible &c 447; indiscoverable†, dark; impenetrable &c (unintelligible) 519; unspied†, unsuspected. unsaid, unwritten, unpublished, unbreathed†, untalked of†, untold &c 527, unsung, unexposed, unproclaimed†, undisclosed &c 529, unexpressed; not expressed, tacit. undeveloped, solved, unexplained, untraced†, undiscovered &c 480.1, untracked, unexplored, uninvented†. indirect, crooked, inferential; by inference, by implication; implicit; constructive; allusive, covert, muffled; steganographic†; understood, underhand, underground; delitescent†, concealed &c 528. Adv. by a side wind; sub silentio [Lat.]; in the background; behind the scenes, behind one's back; on the tip of one's tongue; secretly &c 528; between the lines. Phr. thereby hangs a tale [As You Like It]; tacitum vivit sub pectore vulnus [Lat.] [Vergil]; where there's smoke, there's fire.