vastly

adverb

vast·​ly ˈvast-lē How to pronounce vastly (audio)
Synonyms of vastlynext
: to a very great or vast degree or extent : exceedingly
two people with vastly different tastes
a vastly more powerful bomb
But bluff and bravado … won against potential enemies who vastly outnumbered him.David Gilmour
It was the most eclectic—yet also vastly entertaining—evening of dance I have seen in a long time.Rita Felciano

Examples of vastly in a Sentence

the team has vastly improved in the course of the season vastly underestimated the cost of advertising the new product
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
All these projects vastly increase the value of the land in their areas. Mehdi Paryavi, Sun Sentinel, 11 Mar. 2026 An analysis by a group of leading architects showed that only $329 million of that report’s $1 billion assessment for the city to remain in City Hall would be devoted to repairs, and even that estimate was, according to the architects, vastly inflated. Mark Lamster architecture Critic, Dallas Morning News, 11 Mar. 2026 Scientific research shows that millions of people live in areas facing inundation, but now, a new study finds those numbers have been vastly underestimated. Lauren Sommer, NPR, 9 Mar. 2026 Even though Gyllenhaal and del Toro’s movies were vastly different, the Gothic subject matter was too similar to be released just a few months apart. Rebecca Rubin, Variety, 8 Mar. 2026 See All Example Sentences for vastly

Word History

First Known Use

1598, in the meaning defined above

Time Traveler
The first known use of vastly was in 1598

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Cite this Entry

“Vastly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vastly. Accessed 15 Mar. 2026.

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