incurability
  不能醫治,不能矯正
  In·cur·a·bil·i·ty n.  The state of being incurable; irremediableness.
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  incurability
       n 1: incapability of being cured or healed [syn: incurableness]
            [ant: curability, curability]
       2: incapability of being altered in disposition or habits; "the
          incurability of his optimism"