momentous

C2+ Topic:Describing Qualities

US /moʊˈmɛntəs/ UK /məˈmɛntəs/ See IPA manual

Meanings

1

adj
of great importance or far-reaching consequence

The treaty's signing was a momentous occasion for the entire region.

Thesaurus

Synonyms

1 adj · of great importance or... important significant weighty consequential fateful historic

Opposites

trivial insignificant unimportant inconsequential

Word family

Derived forms momentouslymomentousness

Related forms moment momentum

Etymology

From moment (in the sense 'importance, weight') + -ous; moment derives from Latin mōmentum ('movement, weight, importance'), from movēre ('to move').

mōmentum Latin movēre Latin

View etymology graph ->

Topics

Describing Qualities Word Formation & Derivatives

External links

# momentous

**Type:** Word
**Level:** C2+
**Part of speech:** adj
**IPA (US):** /moʊˈmɛntəs/
**IPA (UK):** /məˈmɛntəs/

## Meanings
1. of great importance or far-reaching consequence

## Examples
- The treaty's signing was a momentous occasion for the entire region.

## Synonyms
- important
- significant
- weighty
- consequential
- fateful
- historic

## Antonyms
- trivial
- insignificant
- unimportant
- inconsequential

## Derived Forms
- momentously
- momentousness

## Related Forms
- moment
- momentum

## Roots and Affixes
- Root: mōmentum
- Root: movēre

## Etymology
From moment (in the sense 'importance, weight') + -ous; moment derives from Latin mōmentum ('movement, weight, importance'), from movēre ('to move').

## AI Etymology
Momentous comes from moment (in the sense 'importance, weight') + -ous; moment derives from Latin mōmentum ('movement, weight, importance'), from movēre ('to move'). The etymological trail includes Latin mōmentum, Latin movēre. The same word family includes momentously, momentousness, moment, momentum. Its current adjective use means "of great importance or far-reaching consequence".

## Topics
- Describing Qualities
- Word Formation & Derivatives

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