Standard Lemma guide

hair-trigger

adj · noun · 3 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.

  • Canada: /ˈhɛɹˌtɹɪ.ɡɚ/
  • General-American: /ˈhɛɚˌtɹɪɡ.ɚ/

1

adj

Meaning 1

Unstable; in a situation that could be worsened by the slightest mistake.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Easily angered; having a short temper.

Definition source: English Wiktionary via Wiktextract

Usage: not-comparable

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: hair-triggered

Antonyms: none provided

3

noun

Meaning 3

A trigger that will set off a firearm when even a very small pressure is applied.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From hair + trigger.

Across languages

Translations

3 source translations are retained for this English entry.

  • Bulgarian: мек спусък (mek spusǎk) — gun mechanism
  • Russian: шне́ллер (šnéller) — gun mechanism
  • Spanish: gatillo de pleo — gun mechanism