Standard Lemma guide

momentous

adj · 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.

  • UK: /məʊˈmɛn.təs/
  • US: /moʊˈmɛn.təs/
  • US: Recorded audio is listed in the source snapshot.
  • rhymes with -ɛntəs
  • CMU ARPABET: M OW0 M EH1 N T AH0 S Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Outstanding in importance, of great consequence.

Definition source: English Wiktionary via Wiktextract

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adjective satellite

Meaning 2

of very great significance

Definition source: Princeton WordNet 3.0

Examples

  • deciding to drop the atom bomb was a very big decision
  • a momentous event

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

Etymology tree English moment Proto-Indo-European *h3ed- Proto-Indo-European *-os Proto-Indo-European *h3édosder.? Proto-Italic *-ŏ̄dsos? Old Latin -ōssus Latin -ōsus Old French -usbor. Middle English -ous English -ous English momentous From moment (“weight, importance”) + -ous.

Across languages

Translations

81 source translations are retained for this English entry.

  • Arabic: جَسِيم (jasīm) — of outstanding importance or great consequence
  • Armenian: կարեւոր (karewor) — of outstanding importance or great consequence
  • Old Armenian: մեծ (mec) — of outstanding importance or great consequence
  • Azerbaijani: mühüm — of outstanding importance or great consequence
  • Basque: erabakigarri — of outstanding importance or great consequence
  • Basque: garrantzitsu — of outstanding importance or great consequence
  • Bulgarian: много важен (mnogo važen) — of outstanding importance or great consequence
  • Catalan: crucial — of outstanding importance or great consequence
  • Catalan: crític — of outstanding importance or great consequence
  • Catalan: decisiu — of outstanding importance or great consequence
  • Catalan: definitiu — of outstanding importance or great consequence
  • Catalan: significatiu — of outstanding importance or great consequence
  • Czech: důležitý — of outstanding importance or great consequence
  • Czech: významný — of outstanding importance or great consequence
  • Czech: závažný — of outstanding importance or great consequence
  • Esperanto: gravega — of outstanding importance or great consequence
  • Estonian: pöördeline — of outstanding importance or great consequence
  • Finnish: merkittävä — of outstanding importance or great consequence
  • Finnish: merkityksellinen — of outstanding importance or great consequence
  • Finnish: järisyttävä — of outstanding importance or great consequence
  • Finnish: käänteentekevä — of outstanding importance or great consequence
  • French: capital — of outstanding importance or great consequence
  • French: considérable — of outstanding importance or great consequence
  • French: fatidique — of outstanding importance or great consequence
  • French: primordial — of outstanding importance or great consequence
  • French: essentiel — of outstanding importance or great consequence
  • French: substantiel — of outstanding importance or great consequence
  • Galician: momentoso — of outstanding importance or great consequence
  • Galician: capital — of outstanding importance or great consequence
  • Galician: crucial — of outstanding importance or great consequence
  • Galician: primordial — of outstanding importance or great consequence
  • Galician: transcendental — of outstanding importance or great consequence
  • German: wichtig — of outstanding importance or great consequence
  • German: bedeutsam — of outstanding importance or great consequence
  • German: folgenreich — of outstanding importance or great consequence
  • German: folgenschwer — of outstanding importance or great consequence
  • German: denkwürdig — of outstanding importance or great consequence
  • German: gewichtig — of outstanding importance or great consequence
  • Hebrew: חשוב (khashuv) — of outstanding importance or great consequence
  • Hebrew: רב חשיבות (rav khashivut) — of outstanding importance or great consequence
  • Hungarian: jelentős — of outstanding importance or great consequence
  • Hungarian: nagy jelentőségű/horderejű — of outstanding importance or great consequence
  • Ido: grava — of outstanding importance or great consequence
  • Ido: importanta — of outstanding importance or great consequence
  • Italian: cruciale — of outstanding importance or great consequence
  • Italian: critico — of outstanding importance or great consequence
  • Italian: importante — of outstanding importance or great consequence
  • Italian: fondamentale — of outstanding importance or great consequence
  • Italian: epocale — of outstanding importance or great consequence
  • Japanese: 重大な (jūdai na) — of outstanding importance or great consequence
  • Korean: 중대하다 (jungdaehada) — of outstanding importance or great consequence
  • Latin: magnus — of outstanding importance or great consequence
  • Manx: frioosagh — of outstanding importance or great consequence
  • Occitan: important — of outstanding importance or great consequence
  • Occitan: considerable — of outstanding importance or great consequence
  • Occitan: capital — of outstanding importance or great consequence
  • Occitan: essencial — of outstanding importance or great consequence
  • Occitan: fondamental — of outstanding importance or great consequence
  • Polish: doniosły — of outstanding importance or great consequence
  • Polish: ważny — of outstanding importance or great consequence
  • Polish: znaczący — of outstanding importance or great consequence
  • Polish: wielkiej wagi — of outstanding importance or great consequence
  • Portuguese: momentoso — of outstanding importance or great consequence
  • Portuguese: capital — of outstanding importance or great consequence
  • Portuguese: crítico — of outstanding importance or great consequence
  • Portuguese: crucial — of outstanding importance or great consequence
  • Portuguese: importante — of outstanding importance or great consequence
  • Portuguese: memorável — of outstanding importance or great consequence
  • Romanian: însemnat — of outstanding importance or great consequence
  • Russian: ва́жный (vážnyj) — of outstanding importance or great consequence
  • Russian: знаменательный (znamenatelʹnyj) — of outstanding importance or great consequence
  • Sanskrit: गुरु (guru) — of outstanding importance or great consequence
  • Spanish: importante — of outstanding importance or great consequence
  • Spanish: crucial — of outstanding importance or great consequence
  • Spanish: memorable — of outstanding importance or great consequence
  • Swedish: betydelsefull — of outstanding importance or great consequence
  • Swedish: viktig — of outstanding importance or great consequence
  • Turkish: mühim — of outstanding importance or great consequence
  • Turkish: önemli — of outstanding importance or great consequence
  • Vietnamese: quan trọng — of outstanding importance or great consequence
  • Vietnamese: trọng yếu — of outstanding importance or great consequence