Standard Lemma guide

counteract

noun · verb · 7 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.

  • /ˈkaʊntəɹˌækt/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • rhymes with -ækt
  • /ˌkaʊntəɹˈækt/
  • Southern-England: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: K AW1 N T ER0 AE2 K T Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

An action performed in opposition to another action.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

verb

Meaning 2

To have a contrary or opposing effect or force on someone or something.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • 1911, 1911 Encyclopædia Britannica - Dome In India, in the “great mosque” of Jama Masjid (a.d. 1560) and the Gol Gumbaz, or tomb of Mahommed Adil Shah (a.d. 1630) at Bijapur, the domes are carried on pendentives consisting of arches crossing one another and projecting inwards, and their weight counteracts any thrust there may be in the dome.

Meaning relationships

Synonyms: offset, counterpoise

Antonyms: none provided

3

verb

Meaning 3

To deliberately act in opposition to, to thwart or frustrate.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

Examples

  • 2016, Margaret Corvid writing in the New Statesman, Five practical things you can do to fight Donald Trump if you live in the UK When people hear my American accent, they want to talk to me about Donald Trump. They want to ask me what happened, and why. But most of all, they ask me – with fear filling their voices – what they can do, as individuals, to counteract him, here, from the United Kingdom.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

destroy property or hinder normal operations

Definition source: Princeton WordNet 3.0

Examples

  • The Resistance sabotaged railroad operations during the war

Meaning relationships

Synonyms: sabotage, undermine, countermine, subvert, weaken

Antonyms: none provided

Broader terms: disobey

Narrower terms: derail

5

verb

Meaning 5

oppose and mitigate the effects of by contrary actions

Definition source: Princeton WordNet 3.0

Examples

  • This will counteract the foolish actions of my colleagues

Meaning relationships

Synonyms: countervail, neutralize, counterbalance

Antonyms: none provided

Broader terms: cancel, offset, set off

Narrower terms: override

6

verb

Meaning 6

act in opposition to

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: antagonize, antagonise

Antonyms: none provided

Broader terms: act, move

7

verb

Meaning 7

oppose or check by a counteraction

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: countercheck

Antonyms: none provided

Broader terms: control, hold in, hold, contain, check, curb, moderate

History

Etymology

Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Proto-Indo-European *-teros Proto-Italic *-teros Proto-Italic *komterosder. Proto-Italic *komterād Latin contrāder. Old French contre- Anglo-Norman countre-bor. Middle English counter- English counter- Proto-Indo-European *h2eǵ- Proto-Indo-European *-eti Proto-Indo-European *h2éǵeti Proto-Italic *agō Latin agō Latin ācta Old French actbor. Middle English acte English act English counteract From counter- + act.

Across languages

Translations

23 source translations are retained for this English entry.

  • Norwegian Bokmål: motvirke — to have a contrary or opposing effect on someone or something
  • Bulgarian: противодействам (protivodejstvam) — to act in opposition to
  • Dutch: tegengaan — to act in opposition to
  • Esperanto: kontraŭagi — to act in opposition to
  • Finnish: vastustaa — to act in opposition to
  • German: entgegenwirken — to act in opposition to
  • German: bekämpfen — to act in opposition to
  • Greek: αντενεργώ (antenergó) — to act in opposition to
  • Greek: αντιδρώ (antidró) — to act in opposition to
  • Greek: αντιπράττω (antiprátto) — to act in opposition to
  • Ancient Greek: ἀντιπράσσω (antiprássō) — to act in opposition to
  • Hungarian: ellensúlyoz — to act in opposition to
  • Italian: contrastare — to act in opposition to
  • Kannada: ಮಲೆ — to act in opposition to
  • Kannada: ಮಾರು (māru) — to act in opposition to
  • Norwegian Bokmål: motvirke — to act in opposition to
  • Norwegian Bokmål: motarbeide — to act in opposition to
  • Polish: przeciwdziałać — to act in opposition to
  • Russian: противоде́йствовать (protivodéjstvovatʹ) — to act in opposition to
  • Russian: противостоять (protivostojatʹ) — to act in opposition to
  • Spanish: contrarrestar — to act in opposition to
  • Swedish: motverka — to act in opposition to
  • Ukrainian: протиді́яти (protydíjaty) — to act in opposition to
Real reading context

counteract in complete knowledge articles