'inactiveness' definitions:
Definition of 'inactiveness'
(from WordNet)
noun
The state of being inactive [syn: inaction, inactivity, inactiveness] [ant: action, activeness, activity]
noun
A disposition to remain inactive or inert; "he had to overcome his inertia and get back to work" [syn: inactiveness, inactivity, inertia] [ant: activeness, activity]