unspoken

from WordNet (r) 3.0 (2006)

unspoken
    adj 1: expressed without speech; "a mute appeal"; "a silent
           curse"; "best grief is tongueless"- Emily Dickinson; "the
           words stopped at her lips unsounded"; "unspoken grief";
           "choking exasperation and wordless shame"- Thomas Wolfe
           [syn: {mute}, {tongueless}, {unspoken}, {wordless}]
    2: not made explicit; "the unexpressed terms of the agreement";
       "things left unsaid"; "some kind of unspoken agreement"; "his
       action is clear but his reason remains unstated" [syn:
       {unexpressed}, {unsaid}, {unstated}, {unuttered},
       {unverbalized}, {unverbalised}, {unvoiced}, {unspoken}]

from The Collaborative International Dictionary of English v.0.48

Unspoken \Unspoken\
   See {spoken}.
   [break]

from Moby Thesaurus II by Grady Ward, 1.0

62 Moby Thesaurus words for "unspoken":
      arcane, cabalistic, censored, classified, close, closed, concealed,
      cryptic, dark, enigmatic, esoteric, hermetic, hidden, hinted,
      hush-hush, implicit, implied, inferred, intimated, latent, mute,
      mysterious, occult, restricted, secret, silent, smothered, stifled,
      suggested, suppressed, tacit, top secret, ulterior, unbreatheable,
      undeclared, under security, under wraps, understood, undisclosable,
      undisclosed, undivulgable, undivulged, unexpressed, unmentioned,
      unproclaimed, unpronounced, unpublished, unrecorded, unrevealable,
      unrevealed, unsaid, unstated, unsung, untalked-of, untellable,
      untold, unutterable, unuttered, unvoiced, unwhisperable, unwritten,
      wordless