'Deadness' definitions:

Definition of 'deadness'

From: WordNet
noun
The quality of being unresponsive; not reacting; as a quality of people, it is marked by a failure to respond quickly or with emotion to people or events; "she began to recover from her numb unresponsiveness after the accident"; "in an instant all the deadness and withdrawal were wiped away" [syn: unresponsiveness, deadness] [ant: responsiveness]
noun
The physical property of something that has lost its elasticity; "he objected to the deadness of the tennis balls"
noun
The inanimate property of something that has died

Definition of 'Deadness'

From: GCIDE
  • Deadness \Dead"ness\, n. The state of being destitute of life, vigor, spirit, activity, etc.; dullness; inertness; languor; coldness; vapidness; indifference; as, the deadness of a limb, a body, or a tree; the deadness of an eye; deadness of the affections; the deadness of beer or cider; deadness to the world, and the like. [1913 Webster]