© 2026 Sloth Lingo. Learn easy. Lounge wisely.

momentous

Upper-Intermediate (B2)

IPA: /məˈmɛntəs/

KK: /məˈmɛntəs/

adjective
Definition

Something that is very important or significant, often because it can lead to major changes or events.


Example

The signing of the peace treaty was a momentous event in the history of the country.


Conversation
Sloth A
Did you hear about the momentous event happening this weekend?
Sloth B
Yeah, I can't believe it's finally happening after all this time!
Sloth A
I know, it's going to be a momentous occasion for everyone involved.
Sloth B
Absolutely! We should definitely be there to witness it.

Synonyms & Antonyms
Synonyms
significant
crucial
historic
Antonyms
insignificant
trivial
unimportant
Root Explanation

Momentous → It is formed from "moment" (from Latin *momentum*, meaning movement or importance) and the suffix "-ous" (meaning full of). The word "momentous" means full of importance or significance, particularly in relation to time or events.

Memory Tip

Think of 'moment' as something that carries importance, and '-ous' means full of. This helps you remember that 'momentous' refers to something that is full of significance.

Visually Confused Words
unmomentous
immomentous
tomentous
tormentous
unmomentously
Is this page helpful?