Source : Webster's Revised Unabridged Dictionary (1913)

Fragility \Fra*gil"i*ty\, n. [L. fragilitas: cf. F.
   fragilit['e]. Cf. {Frailty}.]
   1. The condition or quality of being fragile; brittleness;
      frangibility. --Bacon.

   2. Weakness; feebleness.

            An appearance of delicacy, and even of fragility, is
            almost essential to it [beauty].      --Burke.

   3. Liability to error and sin; frailty. [Obs.]

            The fragility and youthful folly of Qu. Fabius.
                                                  --Holland.

Source : WordNet®

fragility
     n 1: quality of being easily damaged or destroyed [syn: {breakability}]
     2: lack of physical strength [syn: {delicacy}]