Simple past tense and past participle of overreact.(verb)
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Use "overreacted" in a sentence
"Both Gates and the police officers overreacted, which is symptomatic of race relations in the US."
"Sources familiar with Lindsay's treatment at UCLA tell TMZ ... there's a feeling among doctors that Judge Marsha Revel "overreacted" when she ordered Lindsay to stay at the facility for 90 days."
"Sources familiar with Lindsay's treatment at UCLA tell TMZ ... there's a feeling among doctors that Judge Marsha Revel "overreacted" when she ordered Lindsay to ..."