资料来源 : Webster's Revised Unabridged Dictionary (1913)

Incapableness \In*ca"pa*ble*ness\, n.
   The quality or state of being incapable; incapability.

资料来源 : WordNet®

incapableness
     n 1: lack of potential for development [syn: {incapability}]
          [ant: {capability}]
     2: the quality of not being capable -- physically or
        intellectually or legally [syn: {incapability}] [ant: {capability},
         {capability}]