Thesaurus

momentous

adjective

Synonyms & Antonyms of momentous

See the Dictionary Definition 

Keep scrolling for more

Learn More About momentous

Time Traveler for momentous

Time Traveler

The first known use of momentous was in 1631

See more words from the same year

Cite this Entry

“Momentous.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/momentous. Accessed 16 Jun. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on momentous

Dictionary: Definition of momentous

Nglish: Translation of momentous for Spanish Speakers

Britannica English: Translation of momentous for Arabic Speakers

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Dog Breeds

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!