vastly

adverb

vast·​ly ˈvast-lē How to pronounce vastly (audio)
: 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.
Without a centralized body to guide them, regulations in one state can look vastly different from another. October 14, NPR, 14 Oct. 2025 But even with such reinforcements, the conventional Russian naval forces are vastly outgunned — and NATO air forces could likely destroy the Kaliningrad base in the initial hours of a live conflict. James Stavridis, Twin Cities, 13 Oct. 2025 The teams are also on vastly different trajectories. Jordan McPherson, Miami Herald, 13 Oct. 2025 My experience is vastly more diverse than just one city. Eleanor Dearman, Fort Worth Star-Telegram, 13 Oct. 2025 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

Browse Nearby Words

Cite this Entry

“Vastly.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vastly. Accessed 15 Oct. 2025.

More from Merriam-Webster on vastly

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!