Antonyms of noun activation

2 of 3 senses of activation

Sense 1
activation -- (stimulation of activity in an organism or chemical)
       Antonym of inactivation (Sense 1)
      => inactivation -- (the process of rendering inactive; "the gene inactivation system"; "thermal inactivation of serum samples")

Sense 3
activation -- (making active and effective (as a bomb))
       Antonym of deactivation (Sense 2)
      => deactivation, defusing -- (the act of deactivating or making ineffective (as a bomb))

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

3 senses of activation

Sense 1
activation -- (stimulation of activity in an organism or chemical)
       => stimulation -- ((physiology) the effect of a stimulus (on nerves or organs etc.))

Sense 2
energizing, activating, activation -- (the activity of causing to have energy and be active)
       => activity -- (any specific behavior; "they avoided all recreational activity")

Sense 3
activation -- (making active and effective (as a bomb))
       => beginning, start, commencement -- (the act of starting something; "he was responsible for the beginning of negotiations")