- to react or respond more strongly than is necessary or appropriate.
Origin of overreact
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- (intr) to react excessively to something
Word Origin and History for over-react
Online Etymology Dictionary, © 2010 Douglas Harper
- To react with unnecessary or inappropriate force, emotional display, or violence.