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Definition of momentously

momentously

/moʊˈmɛn.təs.li/
mo · men · tous · ly
Adjective:momentous
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momentously Lexical Profile

momentously Game Scores & Validity

• adverb

1

In a manner that has great importance, weight, or far-reaching consequences for the future.

Example

"The supreme court ruled momentously on the constitutional question, reshaping legal precedent for decades."

Synonyms
View all synonyms for momentously
Antonyms
View all antonyms for momentously

Word Nuance & Usage

Do not confuse 'momentously' (in a way that has great significance or lasting consequences) with 'momentarily' (for a very brief moment or very soon).

• Rhymes for momentously

• Nearby Words

momentarily
momentary
momentous
momentously
momentum
mommy
mompreneur

Word Origin & Etymology

Formed in the mid-17th century from the adjective 'momentous' plus the adverbial suffix '-ly', ultimately tracing back to the Latin 'momentum' ('movement, weight, or importance').

Cite this Entry

Wordmom. (2026). Definition of Momentously. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/momentously
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