- (literary) Darkness; the absence of light.
- 1907, Harold Bindloss, chapter 6, in The Dust of Conflict:
- The night was considerably clearer than anybody on board her desired when the schooner Ventura headed for the land. It rose in places, black and sharp against the velvety indigo, over her dipping bow, though most of the low littoral was wrapped in obscurity.
- 1919, W. Somerset Maugham, The Moon and Sixpence, ch. 24
- The state of being unknown; a thing that is unknown.
- The quality of being difficult to understand; a thing that is difficult to understand.
- (the state of being unknown): unknownness
darkness; the absence of light
The state of being unknown; a thing that is unknown