monumental

adjective

mon·​u·​men·​tal ˌmän-yə-ˈmen-tᵊl 

1

: serving as or resembling a monument : massive

monumental sculptures

also : highly significant : outstanding

a monumental painting that stunned the American public

2

: of or relating to a monument

modern monumental architecture

3

: very great

a monumental misunderstanding

monumentality

ˌmän-yə-mən-ˈta-lə-tē 

-ˌmen-

noun

monumentally

ˌmän-yə-ˈmen-tᵊl-ē 

adverb

Synonyms

• august
• baronial
• epic
• gallant
• glorious
• grand
• grandiose
• heroic
• heroical
• Homeric
• imperial
• imposing
• magnific
• magnificent
• majestic
• massive
• noble
• proud
• regal
• royal
• splendid
• stately

Examples of monumental in a Sentence

It's more than a mistake; it's a case of monumental stupidity.

the monumental complexity of the issue

Repairing the damage will be a monumental task.

The class was about modern monumental architecture.

Recent Examples on the Web

As generative AI reshapes the business landscape, C-suite leaders face the monumental task of balancing innovation with governance. —Mohan Koo, Forbes, 26 Feb. 2025

To come back to a job like NBA coaching feels like a monumental task. —Zach Harper, The Athletic, 24 Feb. 2025

Some call it austere, while others call it monumental. —Anna Kodé, New York Times, 22 Feb. 2025

The artists only had three days to install a monumental artwork that would paint Miami in a new, pink light. —Amanda Rosa, Miami Herald, 21 Feb. 2025

Word History

First Known Use

1596, in the meaning defined at sense 1

Rhymes for monumental

• accidental
• compartmental
• continental
• detrimental
• elemental
• fundamental
• governmental
• incidental
• incremental
• instrumental
• interdental
• nonjudgmental

Kids Definition

monumental

adjective

mon·​u·​men·​tal ˌmän-yə-ˈment-ᵊl 

1

: of or relating to a monument

2

: serving as or resembling a monument : massive

also : highly significant : outstanding

3

: very great

monumental stupidity

monumentally

-ᵊl-ē 

adverb