REACTION Synonyms: 17 Similar and Opposite Words

reaction

noun

rē-ˈak-shən

as in response

action or behavior that is done in return to other action or behavior we were startled by her extreme reaction to being jilted by her boyfriend

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Recent Examples of reaction But getting from the ground state to a full mathematical description of the reaction will be far more difficult, involving calculating energies for a whole sequence of intermediate chemical states. —

Quanta Magazine, 29 May 2026 Alpha-gal syndrome causes a variety of allergic reactions to red meats, from anaphylaxis to mild gastrointestinal distress. —

Eva Flowe may 29, Charlotte Observer, 29 May 2026 His reaction is explosive and violent, and a bar fight ensues. —

Kenneal Patterson, Vanity Fair, 29 May 2026 Analysts say the Club name can meet expectations for new net annual recurring revenue in Q1, but the stock reaction will depend on the guidance. —

Jim Cramer, CNBC, 29 May 2026 See All Example Sentences for reaction

Recent Examples of Synonyms for reaction

Noun

Toledo Mayor Wade Kapszukiewicz urged residents to remain united in the aftermath of the shooting, while praising first responders for their response to the incident.

— Michael Sinkewicz, FOXNews.com, 7 June 2026
Other factors could also affect these calculations, such as higher interest rates, a smaller tax base, and labor-supply responses.

— Jason Ma, Fortune, 6 June 2026