[1] : The Collaborative International Dictionary of English v.0.48

unimaginable \unimaginable\
   see imaginable.
see also:
imaginable 

[2] : WordNet (r) 2.0

unimaginable
     adj : totally unlikely syn: impossible, inconceivable, out
           of the question
see also:
impossible inconceivable out of the question 

[3] : Moby Thesaurus II by Grady Ward, 1.0

83 moby thesaurus words for "unimaginable":
   a bit thick, a bit thin, absurd, antic, barred, beguiling,
   bewildering, beyond belief, closed-out, contrary to reason,
   doubtable, doubtful, dubious, dubitable, enigmatic, exceptional,
   excluded, extraordinary, fabulous, fanciful, fantastic,
   fascinating, hard of belief, hard to believe, hopeless,
   implausible, impossible, incomprehensible, inconceivable,
   incredible, logically impossible, marvelous, miraculous,
   not deserving belief, not possible, open to doubt,
   open to suspicion, outlandish, oxymoronic, paradoxical,
   passing belief, passing strange, phenomenal, preposterous,
   problematic, prodigious, prohibited, puzzling, questionable, rare,
   remarkable, ridiculous, ruled-out, self-contradictory, sensational,
   singular, staggering belief, strange, striking, stupendous,
   suspect, suspicious, tall, thick, thin, unaccountable,
   unbelievable, uncommon, unconvincing, unearthly, unexpected,
   ungodly, unheard-of, unique, unknowable, unordinary, unprecedented,
   unthinkable, unusual, unwonted, unworthy of belief, wonderful,
   wondrous

Unimaginable >> U Words
Unimaginable, definition of term: Unimaginable
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