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[oh-ver-ree-akt] /ˌoʊ vər riˈækt/
verb (used without object)
to react or respond more strongly than is necessary or appropriate.
Origin of overreact
First recorded in 1960-65; over- + react
Related forms
overreaction, noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for over-react


(intransitive) to react excessively to something
Derived Forms
overreaction, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for over-react

also overreact, 1961, from over- + react (v.). First attested in Lewis Mumford. Related: Over-reacting; overreacting; over-reaction.

Online Etymology Dictionary, © 2010 Douglas Harper
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over-react in Medicine

overreact o·ver·re·act (ō'vər-rē-ākt')
v. o·ver·re·act·ed, o·ver·re·act·ing, o·ver·re·acts
To react with unnecessary or inappropriate force, emotional display, or violence.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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