un·be·lief /ˌʌnbəˈlif/
  不信,疑惑,不信仰
  Un·be·lief n.
  1. The withholding of belief; doubt; incredulity; skepticism.
  2. Disbelief; especially, disbelief of divine revelation, or in a divine providence or scheme of redemption.
  Blind unbelief is sure to err,
  And scan his work in vain.   --Cowper.
  Syn: -- See Disbelief.
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  unbelief
       n : a rejection of belief [syn: disbelief] [ant: belief]