Antonyms of noun responsiveness

1 of 2 senses of responsiveness

Sense 2
responsiveness -- (the quality of being responsive; reacting quickly; as a quality of people, it involves responding with emotion to people and events)
       Antonym of unresponsiveness (Sense 1)
      => unresponsiveness, deadness -- (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")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun responsiveness

2 senses of responsiveness

Sense 1
responsiveness, reactivity -- (responsive to stimulation)
       => sensitivity, sensitiveness, sensibility -- ((physiology) responsiveness to external stimuli; the faculty of sensation; "sensitivity to pain")

Sense 2
responsiveness -- (the quality of being responsive; reacting quickly; as a quality of people, it involves responding with emotion to people and events)
       => quality -- (an essential and distinguishing attribute of something or someone; "the quality of mercy is not strained"--Shakespeare)