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
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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