reactive
//riˈæktɪv//
Adjective
reactiveCanonical form
more reactiveComparative
most reactiveSuperlative
1
Responding to a stimulus or situation rather than initiating or controlling it.
The company took a reactive approach, only addressing problems after customers complained.
2
(Chemistry) Tending to participate readily in chemical reactions.
Sodium is a highly reactive metal that reacts violently with water.
3
(Medicine) Relating to or caused by a reaction, especially an immune response.
The doctor diagnosed her with reactive arthritis following the infection.