reactive
1 ENTRIES FOUND:
Britannica Dictionary definition of REACTIVE
1
[more reactive; most reactive]
:
done in response to a problem or situation
:
reacting to problems when they occur instead of doing something to prevent them
—
compare proactive
-
a reactive strategy
-
The government's response to the problem was reactive rather than proactive.
2
chemistry
:
tending to change into something else when mixed with another substance
-
a reactive chemical/substance
