Synonyms

vastly

American

[vast-lee, vahst‐] / ˈvæst li, ˈvɑst‐ /

adverb

to an extremely great extent or degree; hugely.

We still have essentially the same brains as early humans, but most of us live in vastly different circumstances than they did.

Other Word Forms

supervastly

adverb

Etymology

Origin of vastly

vast ( def. ) + -ly

Vocabulary lists containing vastly

Debbie Reynolds (1932-2016) Tribute List

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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.

"If such a material could replace regular conductors in applications like computers and data centers, global energy consumption could be slashed and the heat footprint of the ICT sector vastly reduced."

From Science Daily • Jul. 7, 2026

From the Fifa Peace Prize, to the vastly inflated ticket prices at the World Cup, to the Club World Cup, Infantino's tenure has been increasingly controversial.

From BBC • Jul. 6, 2026

An “extraordinary” shift is happening in the technology sector, with artificial-intelligence infrastructure stocks set to vastly outperform most of the “Magnificent Seven” technology companies, according to UBS.

From MarketWatch • Jul. 3, 2026

But cryptocurrency, Libowitz said, offers vastly more potential for corruption.

From Los Angeles Times • Jul. 1, 2026

Second, genes had to explain evolution: How could the inheritance of such units explain that organisms have acquired vastly different forms and features over time?

From "The Gene" by Siddhartha Mukherjee

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023