Antonym: action. Similar words: take action, action, fraction, attraction, practitioner, interaction, transaction, react. Meaning: [rɪ'ækʃn] 
n. 1. a response that reveals a person's feelings or attitude 2. a bodily process occurring due to the effect of some foregoing stimulus or agent 3. (chemistry) a process in which one or more substances are changed into others 4. an idea evoked by some experience 5. doing something in opposition to another way of doing it that you don't like 6. extreme conservatism in political or social matters 7. (mechanics) the equal and opposite force that is produced when any force is applied to a body.
n. 1. a response that reveals a person's feelings or attitude 2. a bodily process occurring due to the effect of some foregoing stimulus or agent 3. (chemistry) a process in which one or more substances are changed into others 4. an idea evoked by some experience 5. doing something in opposition to another way of doing it that you don't like 6. extreme conservatism in political or social matters 7. (mechanics) the equal and opposite force that is produced when any force is applied to a body. 
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271. Things will happen. You can't stop them from happening, but you can control your reaction from making things worse. React positively. Live happily. RVM 
272. The Jaffe reaction employs the use of an alkaline picrate solution that reacts with creatinine to form a bright orange-red complex.
273. Carter was merely stunned by the reaction from the East; he was blown over backward by the reaction from the West.
274. My initial reaction was relief: We had averted another financial crisis.
275. Andrei Krestyaninov, a commander of an elite rapid reaction force leading the attack, the Itar-Tass news agency reported.
276. The second is not to use the medication with those who are at risk for a serious adverse reaction.
277. The belated realization that these things are no longer so leads to the embittered and baffled reaction that they ought to be so.
278. He said he got a positive reaction from council members to his remarks about Western aid but declined to elaborate.
More similar words: take action, action, fraction, attraction, practitioner, interaction, transaction, react, react to, fiction, auction, section, sanction, election, function, reduction, selection, objection, infection, projection, production, collection, inspection, prediction, functional, protection, connection, conviction, distinction, reflection.