Standard Lemma guide

backlash

noun · verb · 8 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.

  • /ˈbækˌlæʃ/
  • US: Recorded audio is listed in the source snapshot.
  • CMU ARPABET: B AE1 K L AE2 SH Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 1

A suddenly reversed or backward motion, such as of a rope or elastic band when it snaps under tension.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Qualifier: literal

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

A negative reaction, objection or outcry, especially of a violent or abrupt nature.

Definition source: English Wiktionary via Wiktextract

Usage: countable, figuratively, uncountable

Examples

  • The public backlash to the proposal was quick and insistent.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

The looseness through which one part of connected machinery, such as a wheel, gear, piston, or screw, can be moved without moving the connected parts, or a measurement of the distance moved thereby; either intentional (as allowance) or unintentional (from error or wear).

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: engineering, mechanical-engineering, mechanics, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

noun

Meaning 4

The jarring or reflex motion caused in badly fitting machinery by irregularities in velocity or a reverse of motion.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: engineering, mechanical-engineering, mechanics, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: lash, play

Antonyms: none provided

5

verb

Meaning 5

To perform a backlash, to lash back in reaction to some cause.

Definition source: English Wiktionary via Wiktextract

Examples

  • 1894 William Westall. Tinkler. Ludgate Illustrated Magazine. Vol VIII Thrutch factory was a queer old concern. It had been built piecemeal-here a bit and there a bit. There were a new end and an old end, the spinning-rooms in the one being light and lofty, in the other low. and gloomy. Looms were shoved in everywhere. There were a "long shop" with three hundred, a "top shop" with a hundred, a "back shop" with fifty-three, and a "little shop" with fifteen. Never was its equal for gearing. Shafts were everywhere inside and out, overground and underground, climbing snake-like up the walls, and boring into the roofs; spurwheels, great and small, whirled, clashed and "backlashed" all over the place.
  • 1909 La Compagnie Générale Transatlantique v. Hayes. (Circuit Court of Appeals, Second Circuit. March 16, 1909.) No. 205. There was testimony that but for the orders of these men, or one of them, the case would have been properly backlashed before being lowered into the hold and that the anxiety of the foreman to get the cargo in quickly induced him to order this case sent down without being properly safeguarded.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

noun

Meaning 6

an adverse reaction to some political or social occurrence

Definition source: Princeton WordNet 3.0

Examples

  • there was a backlash of intolerance

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: reaction

Narrower terms: whitelash, white backlash

7

noun

Meaning 7

a movement back from an impact

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: recoil, repercussion, rebound

Antonyms: none provided

Broader terms: movement, motion

Narrower terms: bounce, bouncing, resilience, resiliency, ricochet, carom

8

verb

Meaning 8

come back to the originator of an action with an undesired effect

Definition source: Princeton WordNet 3.0

Examples

  • Your comments may backfire and cause you a lot of trouble

Meaning relationships

Synonyms: backfire, recoil

Antonyms: none provided

Broader terms: happen, hap, go on, pass off, occur, pass, fall out, come about, take place

History

Etymology

From back- + lash.

Across languages

Translations

87 source translations are retained for this English entry.

  • Bulgarian: ритане (ritane) — sudden backward motion
  • Danish: pludselig reaktion — sudden backward motion
  • Dutch: tegenstroom — sudden backward motion
  • Dutch: verzet — sudden backward motion
  • Finnish: takapotku — sudden backward motion
  • German: zurückspringen — sudden backward motion
  • German: wegspringen — sudden backward motion
  • German: Reaktion — sudden backward motion
  • German: Rückwirkung — sudden backward motion
  • Greek: αντίδραση (antídrasi) — sudden backward motion
  • Italian: reazione — sudden backward motion
  • Portuguese: coice — sudden backward motion
  • Portuguese: reação — sudden backward motion
  • Spanish: reacción opuesta — sudden backward motion
  • Spanish: contragolpe — sudden backward motion
  • Arabic: رَدّ فِعْل عَنِيف (radd fiʕl ʕanīf) — violent or abrupt reaction
  • Chinese Mandarin: 反彈 /反弹 (fǎntán) — violent or abrupt reaction
  • Danish: voldsom reaktion — violent or abrupt reaction
  • Danish: voldsom protestreaktion — violent or abrupt reaction
  • Dutch: tegenstroom — violent or abrupt reaction
  • Dutch: verzet — violent or abrupt reaction
  • Esperanto: protestreago — violent or abrupt reaction
  • Finnish: vastareaktio — violent or abrupt reaction
  • French: retour de bâton — violent or abrupt reaction
  • French: retour de manivelle — violent or abrupt reaction
  • Georgian: საპირისპირო რეაქცია (saṗirisṗiro reakcia) — violent or abrupt reaction
  • Georgian: უარყოფითი რეაქცია (uarq̇opiti reakcia) — violent or abrupt reaction
  • Georgian: ძლიერი უარყოფითი რეაქცია (ʒlieri uarq̇opiti reakcia) — violent or abrupt reaction
  • German: Gegenreaktion — violent or abrupt reaction
  • German: Ausbruch — violent or abrupt reaction
  • German: Rückstoß — violent or abrupt reaction
  • German: Aufschrei — violent or abrupt reaction
  • Greek: αντίκτυπος (antíktypos) — violent or abrupt reaction
  • Greek: εξέγερση (exégersi) — violent or abrupt reaction
  • Italian: contraccolpo — violent or abrupt reaction
  • Japanese: バックラッシュ (bakkurasshu) — violent or abrupt reaction
  • Polish: sprzeciw — violent or abrupt reaction
  • Portuguese: comoção — violent or abrupt reaction
  • Portuguese: revolta — violent or abrupt reaction
  • Portuguese: motim — violent or abrupt reaction
  • Russian: реа́кция (reákcija) — violent or abrupt reaction
  • Russian: ответка (otvetka) — violent or abrupt reaction
  • Russian: отпор (otpor) — violent or abrupt reaction
  • Slovak: negatívna odozva — violent or abrupt reaction
  • Slovak: silná reakcia — violent or abrupt reaction
  • Slovak: veľký odpor — violent or abrupt reaction
  • Spanish: contragolpe — violent or abrupt reaction
  • Spanish: reacción clamorosa / negativa — violent or abrupt reaction
  • Vietnamese: chống đối — violent or abrupt reaction
  • Bulgarian: луфт (luft) — mechanical: distance of free movement between connected parts
  • Bulgarian: хлабина (hlabina) — mechanical: distance of free movement between connected parts
  • Danish: spil — mechanical: distance of free movement between connected parts
  • Dutch: speling — mechanical: distance of free movement between connected parts
  • Finnish: välys — mechanical: distance of free movement between connected parts
  • Finnish: klappi — mechanical: distance of free movement between connected parts
  • Finnish: löysä — mechanical: distance of free movement between connected parts
  • French: jeu — mechanical: distance of free movement between connected parts
  • German: Spiel — mechanical: distance of free movement between connected parts
  • German: Spielraum — mechanical: distance of free movement between connected parts
  • German: Luft (mech.) — mechanical: distance of free movement between connected parts
  • Greek: διάκενο (diákeno) — mechanical: distance of free movement between connected parts
  • Hungarian: holtjáték — mechanical: distance of free movement between connected parts
  • Irish: ligean — mechanical: distance of free movement between connected parts
  • Italian: gioco — mechanical: distance of free movement between connected parts
  • Italian: passo — mechanical: distance of free movement between connected parts
  • Japanese: バックラッシュ (bakkurasshu) — mechanical: distance of free movement between connected parts
  • Polish: luz — mechanical: distance of free movement between connected parts
  • Portuguese: jogo — mechanical: distance of free movement between connected parts
  • Russian: мёртвый ход (mjórtvyj xod) — mechanical: distance of free movement between connected parts
  • Russian: люфт (ljuft) — mechanical: distance of free movement between connected parts
  • Russian: зазо́р (zazór) — mechanical: distance of free movement between connected parts
  • Russian: свобо́дный ход (svobódnyj xod) — mechanical: distance of free movement between connected parts
  • Serbo-Croatian: зазор — mechanical: distance of free movement between connected parts
  • Serbo-Croatian: zazor — mechanical: distance of free movement between connected parts
  • Slovak: vôľa — mechanical: distance of free movement between connected parts
  • Spanish: juego — mechanical: distance of free movement between connected parts
  • Spanish: holgura — mechanical: distance of free movement between connected parts
  • Spanish: huelgo — mechanical: distance of free movement between connected parts
  • Swedish: spel — mechanical: distance of free movement between connected parts
  • Bulgarian: биене (biene) — jarring motion in badly fitting machinery
  • Dutch: speling — jarring motion in badly fitting machinery
  • Finnish: välys — jarring motion in badly fitting machinery
  • Finnish: klappi — jarring motion in badly fitting machinery
  • German: Rumpeln — jarring motion in badly fitting machinery
  • Italian: scuotimento — jarring motion in badly fitting machinery
  • Italian: stridore — jarring motion in badly fitting machinery
  • Italian: dissonanza — jarring motion in badly fitting machinery
Real reading context

backlash in complete knowledge articles