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Synonyms

monumental

American  
[mon-yuh-men-tl] / ˌmɒn yəˈmɛn tl /

adjective

  1. resembling a monument; massive or imposing.

    Synonyms:
    colossal, immense
  2. exceptionally great, as in quantity, quality, extent, or degree.

    a monumental work.

  3. of historical or enduring significance.

    a monumental victory.

  4. Fine Arts. having the quality of being larger than life; of heroic scale.

  5. of or relating to a monument or monuments.

  6. serving as a monument.


monumental British  
/ ˌmɒnjʊˈmɛntəl /

adjective

  1. like a monument, esp in large size, endurance, or importance

    a monumental work of art

  2. of, relating to, or being a monument

  3. informal (intensifier)

    monumental stupidity

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of monumental

From the Late Latin word monumentālis, dating back to 1595–1605. See monument, -al 1

Explanation

Whether it's a monumental effort requiring vast amounts of strength or a monumental cruise ship with eleven floors and five sets of elevators, the word monumental describes something imposing or massive in size. Monumental can also refer to something that's of outstanding importance or significance. A monumental decision for you would be one that changes your life — like the day you got engaged or when you decided to move to New York to be an actor. The word monumental can also be used if you're talking about a monument, a statue or structure commemorating a person or event. You might admire the monumental stonework on the statue in the town square.

Keep Reading on Vocabulary.com

Vocabulary lists containing monumental

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.

"I look very much forward to spending time with President Xi in what will be, I am sure, a Monumental Event," Trump added.

From Barron's • Mar. 25, 2026

A second half headed goal from Flamengo center-back Danilo settled a scrappy encounter at the Estadio Monumental in Lima – the fifth Libertadores final in the past six seasons to feature two clubs from Brazil.

From Barron's • Nov. 29, 2025

On Sunday, River's 85,000-capacity Mas Monumental stadium will host the 264th Superclasico on matchday 15 of the Torneo Apertura, the first half of the Argentine top-flight season.

From BBC • Apr. 27, 2025

Curated by Erin Christovale, “Alice Coltrane: Monumental Eternal” dives deep into the spiritual and sonic worlds of the jazz icon and devotional leader that Coltrane was, and her lasting influence on art and music.

From Los Angeles Times • Feb. 18, 2025

It may interest some of your "Monumental" and "Ecclesiological" correspondents to be informed that in 1834 there was collected and published by D. Macvean, bookseller, Glasgow, a volume of Epitaphs and Monumental Inscriptions in Scotland.

From Notes and Queries, Vol. III, Number 83, May 31, 1851 A Medium of Inter-communication for Literary Men, Artists, Antiquaries, Geneologists, etc by Various