Overreactor

//ˌoʊ.vəɹ.ɹiˈæk.tɚ// noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    One who overreacts.

    "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."

Example

More 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."

Etymology

From overreact + -or.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.