REACTIVE definition and meaning | Collins English Dictionary If someone is reactive, they behave in response to what happens to them, rather than deciding in advance how they want to behave I want our organization to be less reactive and more pro-active
Reactivity (chemistry) - Wikipedia In chemistry, reactivity is the impulse for which a chemical substance undergoes a chemical reaction, either by itself or with other materials, with an overall release of energy Reactivity refers to: the chemical reactions of a single substance, the chemical reactions of two or more substances that interact with each other, the systematic study of sets of reactions of these two kinds
Reactive - Definition, Meaning Synonyms | Vocabulary. com To be reactive is to be ready to react or respond to something else — as opposed to ready to act on one's own A person who's reactive does things only in response to others