hyperreactive
/ˌhaɪpərriˈæktɪv/
adjective
- Reacting more strongly or quickly than normal to a stimulus, such as an allergen or a situation.
- Her hyperreactive skin broke out in a rash from just a tiny amount of perfume.
- People with allergies often have hyperreactive immune systems that overreact to pollen.
- The hyperreactive child startled at every loud noise.
Synonyms