voluminousness
  浩瀚;寬敞
  Vo·lu·mi·nous a.  Of or pertaining to volume or volumes.  Specifically: --
  (a) Consisting of many folds, coils, or convolutions.
  But ended foul in many a scaly fold,
  Voluminous and vast.   --Milton.
     Over which dusky draperies are hanging, and voluminous curtains have long since fallen.   --De Quincey.
  (b) Of great volume, or bulk; large.
  (c) Consisting of many volumes or books; as, the collections of Muratori are voluminous.
  (d) Having written much, or produced many volumes; copious; diffuse; as, a voluminous writer.
  -- Vo*lu*mi*nous*ly, adv. -- Vo*lu*mi*nous*ness, n.
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  voluminousness
       n : greatness of volume [syn: fullness, voluminosity]