Source : Webster's Revised Unabridged Dictionary (1913)

Potentiality \Po*ten`ti*al"i*ty\, n.
   The quality or state of being potential; possibility, not
   actuality; inherent capability or disposition, not actually
   exhibited.

Source : WordNet®

potentiality
     n 1: the inherent capacity for coming into being [syn: {potential},
           {potency}]
     2: an aptitude that may be developed [syn: {capability}, {capableness}]
        [ant: {incapability}]