I tried to find any indication of that, and it doesnt seem to be so. It seems to be that a self adaptation user is able to actively choose what and how they wish to adapt and grow in any given situation.
Side note, When something is reactive, that means that it will only act to stimuli. For example, you instinctively hold your breath under water. The word you are thinking of is passive, which reacts even if the user is unaware. An example of that would be that a fish is always able to breathe under water