adjective
- of great importance or significance, especially in having a major effect on future events
Examples
- The signing of the peace treaty was a momentous occasion.
- She made the momentous decision to change careers.
- The discovery of DNA’s structure was momentous for science.
- Their wedding day was the most momentous event of their lives.
- The court’s ruling had momentous implications for civil rights.
- He paused before making such a momentous announcement.