WordNet (r) 3.0 (2006):

far cry
    n 1: distance estimated in terms of the audibility of a cry;
         "it's a far cry from here"
    2: a disappointing disparity; "it was a far cry from what he had
       expected"

Moby Thesaurus II by Grady Ward, 1.0:

59 Moby Thesaurus words for "far cry":
   aphelion, apogee, contrariety, contrast, departure, deviation,
   difference, disaccord, disaccordance, disagreement, disconformity,
   discongruity, discordance, discrepancy, discreteness, disparity,
   dissent, dissimilarity, dissonance, distinction, distinctness,
   divergence, divergency, diversity, far piece, giant step,
   good ways, great distance, heterogeneity, inaccordance,
   incompatibility, incongruity, inconsistency, inconsonance,
   inequality, inharmoniousness, inharmony, irreconcilability,
   long chalk, long haul, long range, long road, long run, long step,
   long way, mixture, nonconformity, odds, opposition, otherness,
   separateness, tidy step, unconformity, unlikeness, unorthodoxy,
   variance, variation, variegation, variety