资料来源 : pyDict

巨大,广大,广漠

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Vastness \Vast"ness\, n.
   The quality or state of being vast.

资料来源 : WordNet®

vastness
     n : unusual largeness in size or extent [syn: {enormousness}, {grandness},
          {greatness}, {immenseness}, {immensity}, {sizeableness}]