Monumental

//ˌmɒnjʊˈmɛntəl// adj

adj ·Moderate ·High school level

Definitions

Adjective
  1. 1
    In the manner of a monument.
  2. 2
    Large, grand and imposing.
  3. 3
    Taking a great amount of time and effort to complete.

    "Creating a complete map of the human connectome would therefore be a monumental milestone but not the end of the journey to understanding how our brains work."

  4. 4
    Relating to monuments.

    "Monumental construction."

Adjective
  1. 1
    imposing in size or bulk or solidity wordnet
  2. 2
    of outstanding significance wordnet
  3. 3
    relating or belonging to or serving as a monument wordnet

Synonyms

All synonyms
significantabjectabysmalaerialairyaltitudinous

Example

More examples

"The moon landing was a monumental achievement."

Etymology

Borrowed from Late Latin monumentālis, from Latin monumentum; equivalent to monument + -al.

Related phrases

monumental masonmonumental masonry

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.