Meaning & use

momentous

adjective·Academic

Of great importance, especially because of long-lasting or significant consequences.

See it in a sentence

Signing the peace treaty was a momentous occasion for both nations involved.

Choosing to move abroad was the most momentous decision of her adult life.

A note on using this word

Momentous is reserved for events or decisions with lasting weight; using it for everyday matters can sound exaggerated.

Words with a similar meaning

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Words with an opposite meaning

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