Definitions

monumental

[mon-yuh-men-tl] / ˌmɒn yəˈmɛn tl /

ADJECTIVE

impressive, overwhelming

Synonyms

STRONGEST

awesome enduring enormous fantastic gigantic grand great historic huge immense mammoth massive memorable significant towering tremendous unforgettable vast

WEAK

awe-inspiring classic immortal important lasting lofty majestic mighty mortal mountainous outstanding prodigious stupendous

Antonyms

STRONGEST

bad common dwarfed insignificant little miniature minor minute poor short small teeny tiny unimportant unimpressive

WEAK

trivial unimposing

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Russian 25th seed, playing in her first Grand Slam quarter-final, reeled off 12 of the final 13 games to win 3-6 7-5 6-0 and complete a monumental upset.

From BBC • Jun. 3, 2026

This struck him as a monumental misuse of resources.

From Salon • Jun. 2, 2026

Some investors privately groaned over what they saw as a frustrating lack of disclosure from the company for such a monumental decision.

From The Wall Street Journal • May 29, 2026

The piece will run about seven hours from sundown to sunrise, 365 days a year, just across the street from Jeff Koons’ monumental topiary sculpture “Split-Rocker.”

From Los Angeles Times • May 27, 2026

I didn't mind losing, because I had already kicked ass on a monumental level.

From "Winger" by Andrew Smith

Vocabulary lists containing monumental

The Maze Runner

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Stargirl

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