momentous Meaning, definition in Cambridge English Dictionary
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Meaning of "momentous" - English Dictionary

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momentousadjective

uk   /məˈmen.təs/  us   /-t̬əs/
very important because of effects on future events: the momentous news of the president's death Whether or not to move overseas was a momentous decision for the family.
momentously
adverb uk   us   /-li/
momentousness
noun [U] uk   us   /-nəs/
Translations of “momentous”
in Chinese (Traditional) 重大的,重要的…
in Russian важнейший, торжественный…
in Turkish çok önemli, son derece ciddi…
in Chinese (Simplified) 重大的,重要的…
in Polish doniosły…
(Definition of momentous from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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