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Meaning of reaction
A response to a particular stimulus or situation.
Etymology of reaction
The word "reaction" comes from the Latin "reactio", which means "opposition" or "resistance", and is derived from the verb "reagere", which means "to act again" or "to oppose".
 The word has been in use since the 15th century, initially in the context of chemistry and physics, and later expanding to include social and emotional reactions.
Synonyms
                                                response
                                                                        reply
                                                                        retort
                                                                        rejoinder
                                                                        comeback
                                                                        feedback
                                                                        answer
                                                                        rejoinder
                                                                        riposte
                                                                        counterattack
                                                                        retaliation
                                                                        backlash
                                                                        recoil
                                                                        rebound
                                                                        resistance
                                                                        opposition
                                                                        protest
                                                                        demonstration
                                                                        outburst
                                                                        explosion
                                                                        burst
                                                                        flare-up
                                                                        eruption
                                                                        outpouring
                                                                        expression
                                                                        emotion
                                                                        feeling
                                                                        sentiment
                                                                        sensation
                                                                        impulse
                                                                        instinct
                                                                        reflex
                                                                        reply
                                                                        rejoinder
                                                                        reaction
                                                                        response
                                                                        counterreaction
                                                                        overreaction
                                                                        underreaction
                                                                        resistance
                                                                        immunity
                                                                        insensitivity
                                                                        apathy
                                                                        indifference
                                                                        nonchalance
                                                                        stoicism
                                                                        numbness
                                                                        unresponsiveness
                                                                        impassiveness
                                                                        insusceptibility
                                                                        exemption
                                                                        exception
                                                                        repulsion
                                                                        aversion
                                                                        disinclination
                                                                        reluctance
                                                                        hesitation
                                                                        demur
                                                                        cavil
                                                                        quibble
                                                                        objection
                                                                        exception
                                                                        protest
                                                                        dissent
                                                                        disagreement
                                                                        disapproval
                                                                        displeasure
                                                                        discontent
                                                                        dissatisfaction
                                                                        disgruntlement
                                                                        disillusionment
                                                                        disenchantment
                                                            
            Definitions
- A person's instinctive or automatic response to something, such as a change in their environment or a particular stimulus.
- A chemical reaction, especially one involving the interaction of two or more substances.
- A feeling or emotion, especially one that is intense or spontaneous.
Usage Examples
- The audience had a strong reaction to the movie, with some people laughing and others crying.
- The chemical reaction between the two substances produced a lot of heat.
- Her reaction to the news was one of shock and surprise.
Antonyms
                                                indifference
                                                                        apathy
                                                                        nonchalance
                                                                        stoicism
                                                                        numbness
                                                                        unresponsiveness
                                                                        impassiveness
                                                                        insusceptibility
                                                                        exemption
                                                                        exception
                                                                        repulsion
                                                                        aversion
                                                                        disinclination
                                                                        reluctance
                                                                        hesitation
                                                                        demur
                                                                        cavil
                                                                        quibble
                                                                        objection
                                                                        exception
                                                                        protest
                                                                        dissent
                                                                        disagreement
                                                                        disapproval
                                                                        displeasure
                                                                        discontent
                                                                        dissatisfaction
                                                                        disgruntlement
                                                                        disillusionment
                                                                        disenchantment
                                                                        inaction
                                                                        inactivity
                                                                        inertia
                                                                        stagnation
                                                                        paralysis
                                                                        immobility
                                                                        passivity
                                                                        resignation
                                                                        acquiescence
                                                                        submission
                                                                        compliance
                                                                        obedience