overreactor

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US/ˌoʊ.vəɹ.ɹiˈæk.tɚ/UK/ˌəʊvəɹiˈæktə/

noun

One who overreacts.

Scrabble 16
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Meanings

nounoverreactor (plural overreactors)

plural overreactors

  1. One who overreacts.

    You are going to go from being a toxic-thought overreactor to a toxic-thought zapper.

    2009, Jeffrey Bernstein, Liking the Child You Love
    1 more example

    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.

    2005, Katherine M. Ramsland, Inside the Minds of Mass Murderers: Why They Kill

Origin

From overreact + -or.

Full word history & related roots →

Rhymes & wordplay

Rhymes with overreactor

factoractortractorreactorextractorrefractorattractorcompactorprotractorretractorimpactorinteractoracterabstractormalefactorenactorabstractercompactercounteractercounteractorenacterexactorjudicial factoroveractor
All rhymes →
Cite this entry
APA

overreactor. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/overreactor

MLA

“overreactor.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/overreactor. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “overreactor,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/overreactor.

Source: overreactor on Wiktionary, CC BY-SA 4.0.