reactive

adjective

re·​ac·​tive rē-ˈak-tiv How to pronounce reactive (audio)
1
: of, relating to, or marked by reaction or reactance
2
a
: readily responsive to a stimulus
b
: occurring as a result of stress or emotional upset
reactive depression
reactively adverb
reactiveness noun

Examples of reactive in a Sentence

The government's response to the problem was reactive rather than proactive.
Recent Examples on the Web Upstaging is always a danger in any story in which the main character is a reactive chameleon. Daniel Fienberg, The Hollywood Reporter, 10 Apr. 2024 In the face of modern developments and repercussions associated with data breaches, far too many organizations still take the reactive rather than proactive approach. Tyler Shepherd, USA TODAY, 8 Apr. 2024 That’s because Holly Robinson Peete always planned to be proactive, not reactive, in her relationship with sportsman Rodney. Taiia Smart Young, Essence, 14 Feb. 2024 Unfortunately, this was a slow and very reactive method to a major problem, especially in a world where electricity for devices has become a paramount concern. Neil Sahota, Forbes, 28 Mar. 2024 Additionally, a few people, like Snyder and Haass, make plain what people can and should do to defend against bad leaders, to be not just reactive but proactive. Barbara Kellerman, Fortune, 6 Mar. 2024 One of the biggest challenges impeding progress is the fact that laws, by and large, are reactive instead of preventative regulation. Andrew Paul, Popular Science, 29 Feb. 2024 Understandably, the queen assumes the decision is Wilhelm’s reactive –– and fleeting –– ploy to reunite with Simon (Omar Rudberg), who ended their relationship in the penultimate episode after expressing his fears that the pressures of the crown were changing Wilhelm and himself. Hunter Ingram, Variety, 19 Mar. 2024 Those of us with historically reactive skin experienced no irritation with this one. Alyssa Brascia, Peoplemag, 16 Feb. 2024

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'reactive.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1717, in the meaning defined at sense 1

Time Traveler
The first known use of reactive was in 1717

Dictionary Entries Near reactive

Cite this Entry

“Reactive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/reactive. Accessed 19 Apr. 2024.

Kids Definition

reactive

adjective
re·​ac·​tive rē-ˈak-tiv How to pronounce reactive (audio)
1
: of or relating to reaction
2
: reacting or tending to react
reactively adverb
reactiveness noun
reactivity noun

Medical Definition

reactive

adjective
re·​ac·​tive rē-ˈak-tiv How to pronounce reactive (audio)
1
a
: of, relating to, or marked by reaction
reactive symptoms
a reactive process
b
: capable of reacting chemically
highly reactive materials
2
a
: readily responsive to a stimulus
the skin of the geriatric is less reactive than that of younger personsLouis Tuft
b
: occurring as a result of stress or emotional upset especially from factors outside the organism
reactive depression

More from Merriam-Webster on reactive

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