Meaning of the word reactive in English

What does reactive mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

reactive

US /riˈæk.tɪv/
UK /riˈæk.tɪv/
"reactive" picture

Adjective

1.

showing a response to a stimulus

Example:
The patient's pupils were reactive to light.
The new material is highly reactive to heat.
2.

acting in response to a situation rather than creating or controlling it

Example:
Their approach to customer complaints is often reactive, not proactive.
A reactive government only acts after a crisis occurs.
Synonym:
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