Simple Definition of reactive
: done in response to a problem or situation : reacting to problems when they occur instead of doing something to prevent them
chemistry : tending to change into something else when mixed with another substance
Examples of reactive in a sentence
The government's response to the problem was reactive rather than proactive.
First Known Use of reactive
Medical Definition of reactive
2a: readily responsive to a stimulus <the skin of the geriatric is less reactive than that of younger persons—Louis Tuft>b: occurring as a result of stress or emotional upset especially from factors outside the organism <reactive depression>
Seen and Heard
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