Definition of momentous in English:

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Pronunciation: /mōˈmen(t)əs/
Pronunciation: /məˈmen(t)əs/


(Of a decision, event, or change) of great importance or significance, especially in its bearing on the future: a period of momentous changes in East-West relations
More example sentences
  • The prospect of a single currency may present this country with one of the most momentous decisions in its history.
  • It was just after I sat my finals at art college in 1962 that a series of momentous events occurred.
  • After the momentous events of 1953 the men from the expedition shared a rare friendship.
important, significant, historic, portentous, critical, crucial, life-and-death, decisive, pivotal, consequential, of consequence, far-reaching, impactful, earth-shattering, earth-shaking
formal of moment



Example sentences
  • They made the rounds at the meetings of the financial organizations, presenting their data as a momentously cautionary tale.
  • I was simply overwhelmed by sensation: one simply stood, receiving momentously bad news second by second with no possible escape or remedy.
  • Suddenly, putting out the ‘party vibe,’ for arenas of fans became momentously difficult.


Pronunciation: /mōˈmen(t)əsnəs/ Pronunciation: /məˈmen(t)əsnəs/
Example sentences
  • It is impossible to overstate the momentousness of such events, and yet they have fallen into a shadowy disregard, eclipsed by recent history.
  • ‘Yes,’ said the delicate boy, fingers touching his lips as the momentousness of his confession struck home.
  • He didn't seem to care what he published - the act of publication was no longer invested for him with any momentousness.

Words that rhyme with momentous


For editors and proofreaders

Syllabification: mo·men·tous

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