Antonyms of noun inaction

1 sense of inaction

Sense 1
inaction, inactivity, inactiveness -- (the state of being inactive)
       Antonym of action (Sense 2)
      => action, activity, activeness -- (the state of being active; "his sphere of activity"; "he is out of action")

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

1 sense of inaction

Sense 1
inaction, inactivity, inactiveness -- (the state of being inactive)
       => state -- (the way something is with respect to its main attributes; "the current state of knowledge"; "his state of health"; "in a weak financial state")