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.
The times are vastly different, but the balance of power between these married writers remains precarious. Theater Critic, Los Angeles Times, 14 Feb. 2026 The stock, which has roughly doubled over the past 12 months to an all-time high of $742, has vastly outperformed such tech behemoths as Apple (up 20%) and Microsoft (up about 1%). Sheryl Estrada, Fortune, 11 Feb. 2026 People who didn't attend college and earn less have a vastly different experience. Paige Winfield Cunningham The Washington Post, Arkansas Online, 9 Feb. 2026 Identifying such subregions across the brain, Hintiryan said, could resolve debates between neuroscientists who assign vastly different functions to the same large brain region. Amber Dance, Quanta Magazine, 9 Feb. 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 Feb. 2026.

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