vastness
noun/ˈvæstnəs/
Etymology From vast + -ness.
1
The quality of being vast.
- He was thinking; but the glory of the song, the swell from the great organ, the clustered lights, […], the height and vastness of this noble fane, its antiquity and its strength—all these things seemed to have their part as causes of the thrilling emotion that accompanied his thoughts.1918, W[illiam] B[abington] Maxwell, chapter V, in The Mirror and the Lamp, Indianapolis, Ind.: The Bobbs-Merrill Company, →OCLC:
2
Something vast.
- He had a feeling that he was lost in the vastness of a huge forest.1932, The Magnet - Bunter's Night Out: