English · Culture & Society
momentous
/məʊˈmɛn.təs/
[/məʊˈmɛn.təs/]
of great importance
Advancedadjective
Definition
Something momentous is of great importance, especially in its long-term effect. A momentous decision changes the course of events.
Example
It was a momentous day in the nation's history.
It was a momentous day in the nation's history.
Etymology
From Latin 'momentum', meaning movement or importance.
How & Where It’s Used
Describes events of lasting historical or personal weight.