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reactive
1 ENTRIES FOUND:
Learner's definition of REACTIVE
1
[more reactive; most reactive] : done in response to a problem or situation : reacting to problems when they occur instead of doing something to prevent them回应的；反应的 — compare proactive
- a reactive strategy后发制人的策略
- The government's response to the problem was reactive rather than proactive.政府对这个问题采取了事后反应，而不是事先主动出击。
2
chemistry : tending to change into something else when mixed with another substance易起化学反应的；化学性质活泼的；活性的
- a reactive chemical/substance活性化学品/物质
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
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 Phrases Containing reactive
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