Overreactor
//ˌoʊ.vəɹ.ɹiˈæk.tɚ//
"Overreactor" in a Sentence (2 examples)
The overreactor develops poor focus while the underreactor has trouble developing empathy. Either pattern will affect how others interact with that person, and thus will affect the neurochemical profile.
You are going to go from being a toxic-thought overreactor to a toxic-thought zapper.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.