Meaning of unbelievable

un•be•liev•a•ble

Pronunciation: (un"bi-lē'vu-bul), [key]
— adj.
  1. too dubious or improbable to be believed: an unbelievable excuse.
  2. so remarkable as to strain credulity; extraordinary: the unbelievable fury of the storm; an unbelievable athlete.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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