unheard-of

from WordNet (r) 3.0 (2006)
unheard-of
    adj 1: previously unknown; "a first novel by an unheard of
           writer"; "developments on an unheard-of scale"
from The Collaborative International Dictionary of English v.0.48
Unheard-of \Un*heard"-of\, a.
   New; unprecedented; unparalleled. --Swift.
   [1913 Webster]
from Moby Thesaurus II by Grady Ward, 1.0
19 Moby Thesaurus words for "unheard-of":
      disgraceful, extreme, inconceivable, nameless, obscure, offensive,
      outlandish, outrageous, shocking, unbelievable, unfamiliar,
      unidentified, unimaginable, unimagined, unknown, unprecedented,
      unsung, unthinkable, unusual
antiflux / dictionary / unheard-of
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