Source : Webster's Revised Unabridged Dictionary (1913)

Incomprehensible \In*com`pre*hen"si*ble\, a. [L.
   incomprehensibilis: cf. F. incompr['e]hensible. See {In-}
   not, and {Comprehensible}.]
   1. Not capable of being contained within limits.

            An infinite and incomprehensible substance.
                                                  --Hooker.

   2. Not capable of being comprehended or understood; beyond
      the reach of the human intellect; inconceivable.

            And all her numbered stars that seem to roll Spaces
            incomprehensible.                     --Milton.
      -- {In*com`pre*hen"si*ble*ness}, n. --
      {In*com`pre*hen"si*bly}, adv.