noun
1. 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
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she began to recover from her numb unresponsiveness after the accident
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in an instant all the deadness and withdrawal were wiped away
• Syn: ↑unresponsiveness
• Ant: ↑responsiveness (for: ↑unresponsiveness)
• Derivationally related forms: ↑dead, ↑unresponsive (for: ↑unresponsiveness)
• Hypernyms: ↑quality
• Hyponyms: ↑frigidity, ↑frigidness, ↑resistance
2. the physical property of something that has lost its elasticity
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he objected to the deadness of the tennis balls
• Derivationally related forms: ↑dead
• Hypernyms: ↑inelasticity
3. the inanimate property of something that has died
• Derivationally related forms: ↑dead
• Hypernyms: ↑inanimateness, ↑lifelessness
Useful english dictionary. 2012.