Standard Lemma guide

overreaction

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: OW1 V ER0 R IY0 AE2 K SH AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A reaction that is excessive.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Examples

  • She had every right to dump you, but cutting up all your clothes after she did so was an overreaction.
  • This whole fear over swine flu was unfounded; it was clearly an overreaction.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

an excessive reaction; a reaction with inappropriate emotional behavior

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: reaction, response

History

Etymology

Etymology tree Proto-Indo-European *úp Proto-Indo-European *-er Proto-Indo-European *upér Proto-Germanic *uber Old English ofer- Middle English over- English over- English reaction English overreaction From over- + reaction.

Across languages

Translations

11 source translations are retained for this English entry.

  • Chinese Mandarin: 反應過度 /反应过度 (fǎnyìng guòdù) — reaction deemed excessive
  • Finnish: ylilyönti — reaction deemed excessive
  • Finnish: ylimitoitettu reaktio — reaction deemed excessive
  • German: Überreaktion — reaction deemed excessive
  • Greek: υπεραντίδραση (yperantídrasi) — reaction deemed excessive
  • Japanese: 過剰反応 (kajōhannō) — reaction deemed excessive
  • Japanese: オーバーリアクション (ōbāriakushon) — reaction deemed excessive
  • Norwegian Bokmål: overreaksjon — reaction deemed excessive
  • Norwegian Nynorsk: overreaksjon — reaction deemed excessive
  • Romanian: reacție exagerată — reaction deemed excessive
  • Swedish: överreaktion — reaction deemed excessive
Real reading context

overreaction in complete knowledge articles