Source : Webster's Revised Unabridged Dictionary (1913)

Intangibility \In*tan`gi*bil"i*ty\, n.; pl. {Intangibilities}.
   [Cf. F. intangibilit['e].]
   The quality or state of being intangible; intangibleness.

Source : WordNet®

intangibility
     n : the quality of being intangible [syn: {intangibleness}, {impalpability}]
         [ant: {tangibility}, {tangibility}]