Wiktionary
nonreactive
a. That will not react.
Usage examples of "nonreactive".
By the time a sufficiency of nonreactive chemical retardants and suppressants could be brought from Aurora City, much of the glorious but debauched fair should be reduced to wind-blown cinders among which would drift the carbonized components of as many baked bugs as possible.
The metal, when removed, opened a channel between two otherwise nonreactive chemicals.
It’s also a key to proactivity because it gives you a positive, uplifting, nonreactive way to respond to the ups and downs of daily life.