reactive

adjective
UK: /riˈæktɪv/
US: /riˈæktɪv/

  1. Tending to react to events or situations rather than initiating them; responding to a stimulus.

    1. The dog is reactive to loud noises, so be careful.
    2. The company's reactive approach to problems meant they were always behind schedule, never proactive.

  2. Displaying or characterized by reactivity; readily participating in chemical reactions.

    1. This metal is very reactive and corrodes quickly in air.
    2. Sodium is a highly reactive element that readily forms compounds with other substances.

Synonyms

susceptible liable active prone responsive

Frequently Asked Questions

The word "reactive" in English means: Tending to react to events or situations rather than initiating them; responding to a stimulus., Displaying or characterized by reactivity; readily participating in chemical reactions..

The phonetic transcription of "reactive" is /riˈæktɪv/ in British English and /riˈæktɪv/ in American English. Click the 🔊 button to hear both pronunciations.

Synonyms for "reactive": susceptible, liable, active, prone, responsive.

Example usage of "reactive": "The dog is reactive to loud noises, so be careful.". More examples on the page.