nonreactor
/nɑnriˈæktər/
noun
- A person or thing that does not react or respond to a stimulus, situation, or substance.
- The chemical was a nonreactor in the experiment, showing no change.
- As a nonreactor to stress, she stays calm even in emergencies.
- In the allergy test, he was a nonreactor to all the common allergens.
Antonyms