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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

Example Sentences

The government's response to the problem was reactive rather than proactive.
Recent Examples on the Web The gas is highly reactive, which can be problematic for sensitive groups on days where levels are higher than usual. Liliana Webb, Detroit Free Press, 11 July 2022 But such tools are hampered by being merely reactive. Akhilesh Tripathi, Forbes, 13 June 2022 These changes may be an adaptive response: The young brain is waiting for instructions from the environment, and if a child grows up in an environment of toxic stress, that child's brain will organize itself to be highly reactive to stress. Lydia Denworth, Scientific American, 1 June 2022 Oil prices have been highly reactive in recent months to both Russia’s war against Ukraine, which could disrupt supplies, and lockdowns in major Chinese cities that sap demand. Caitlin Ostroff And Orla Mccaffrey, WSJ, 18 May 2022 Your attitude to them can be appropriately reactive. New York Times, 15 Mar. 2022 Earlier in the study, many of the same children had been particularly reactive when viewing fearful facial expressions. Anthony Steven Dick, The Conversation, 7 Feb. 2022 Put vegetables and all the liquid in a non-reactive (plastic or glass) container with a tight lid and refrigerate, turning occasionally for at least 3 hours or overnight before serving. Elizabeth Karmel, Forbes, 27 June 2022 The Republican agenda in 2010 was far more reactive, with few substantive proposals to address the most important issue of the time, boosting the recovery from the Great Recession. Noah Millman, The Week, 18 Mar. 2022 See More

Word History

First Known Use

1717, in the meaning defined at sense 1

Time Traveler
The first known use of reactive was in 1717

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