Source : Webster's Revised Unabridged Dictionary (1913)

Sapless \Sap"less\, a.
   1. Destitute of sap; not juicy.

   2. Fig.: Dry; old; husky; withered; spiritless. ``A somewhat
      sapless womanhood.'' --Lowell.

            Now sapless on the verge of death he stands.
                                                  --Dryden.

Source : WordNet®

sapless
     adj 1: lacking physical strength or vitality; "a feeble old woman";
            "her body looked sapless" [syn: {decrepit}, {debile},
            {feeble}, {infirm}, {weak}, {weakly}]
     2: destitute of sap and other vital juices; dry; "the rats and
        roaches scurrying along the sapless planks"- Norman Mailer