vastly

adverb

ˈvast-lē How to pronounce vastly (audio)
Definition of vastlynext
1
as in extremely
to a great degree the team has vastly improved in the course of the season

Synonyms & Similar Words

Relevance

Antonyms & Near Antonyms
2
as in highly
to a large extent or degree vastly underestimated the cost of advertising the new product

Synonyms & Similar Words

Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of vastly But this time, the 28-year-old right-hander lasted only 2⅔ innings — as long as his scoreless, 34-pitch relief appearance in Game 7 of the World Series last year, but with a vastly different outcome. — Mirjam Swanson, Los Angeles Times, 13 Oct. 2026 Consider two organizations that follow the same regulation but take vastly different amounts of time to reach a conclusion. — Balaji Sreenivasan, Forbes.com, 13 Oct. 2026 As of last year, the US had roughly 10 times more AI data centers than China, according to Stanford University research – and vastly more computing power, other estimates show. — Simone McCarthy, CNN Money, 13 Oct. 2026 Fleet Street The Fleet Street of today looks vastly different from the Fleet Street of 1969. — Jazz Tangcay, Variety, 12 Oct. 2026 See All Example Sentences for vastly
Recent Examples of Synonyms for vastly
  1. extremely
  2. highly
  3. incredibly
  4. greatly
  5. very
  6. considerably
  7. terribly
  8. much
Adverb
  • Experts attribute the extremely warm ocean temperatures that fueled Rachel, which peaked as a Category 3 hurricane, in part to El Niño.
    — Noah Haggerty, Los Angeles Times, 12 Oct. 2026
  • All this makes the Home app very easy to use, but extremely underpowered.
    — Jennifer Pattison Tuohy, The Verge, 12 Oct. 2026
Definition of extremely
Adverb
  • Authorities in both countries were investigating the cyber incidents, which exposed vulnerabilities in some older refrigeration management systems and in the countries' highly efficient food supply chains.
    — JOHN LEICESTER, Arkansas Online, 15 Oct. 2026
  • Cell-depleting therapies, which are generally considered highly effective treatments, target and remove specific immune cells.
    — Melissa Rudy, FOXNews.com, 14 Oct. 2026
Definition of highly
Adverb
  • Indeed, the diamond was quite an exquisite addition, considering that such gemstones over 10 carats are incredibly rare.
    — Julia Teti, Footwear News, 12 Oct. 2026
  • For now, this perfect mix of burgeoning youth and senior leadership has come together to create an incredibly deep team with big dreams.
    — Daniel Sperry, Kansas City Star, 11 Oct. 2026
Definition of incredibly
Adverb
  • China has also greatly reduced its imports by tapping into its strategic reserves.
    — Lou Robinson, CNN Money, 17 Oct. 2026
  • One tiny drop on the collar of a jighead will greatly diminish a fish’s ability to rip off the lure when short striking.
    — Joe Cermele, Outdoor Life, 15 Oct. 2026
Definition of greatly
Adverb
  • One of the other things that Claude noticed was that these array of associated reverse transcriptases seem to be isolated to jumbo phages, which have very large genomes for bacteriophage.
    — Adam Kovac, Scientific American, 14 Oct. 2026
  • There’s very few cases where a fan actually gets to stand beside the man and add onto the man’s legacy.
    — Christine Imarenezor, VIBE.com, 13 Oct. 2026
Definition of very
Adverb
  • Fortunately for Moss, his own fishing trip with Church went considerably better.
    — Amber Harding OutKick, FOXNews.com, 13 Oct. 2026
  • Ask whether the same level of performance is beginning to require considerably more internal effort.
    — Shahrzad Jalali, Forbes.com, 13 Oct. 2026
Definition of considerably
Adverb
  • Another issue is that AI detectors are still not terribly reliable, which Vara addresses in her piece, citing a number of studies to bolster the credentials of Pangram.
    — James Folta, Literary Hub, 14 Oct. 2026
  • Probably nothing too terribly bad, especially since Denver has done it without much offensive consistency.
    — Parker Gabriel, Denver Post, 7 Oct. 2026
Definition of terribly
Adverb
  • Others are skeptical the task force can accomplish much in such a short time period, arguing that eventually sweeping new legislation will be needed to regulate AI.
    — Ashley Gold, semafor.com, 19 Oct. 2026
  • Now, Mahomes and the Chiefs are undefeated through five games for only the third time in his career, and the offense much more closely resembles the heights of his torrid five-year start compared with the more recent three-season malaise.
    — Rohan Nadkarni, NBC news, 19 Oct. 2026
Definition of much

Browse Nearby Words

vastitude
vastly
vastness
See all Nearby Words

Cite this Entry

“Vastly.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vastly. Accessed 20 Oct. 2026.

Copy Citation
Love words? Need even more definitions?

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

Last Updated: - Updated example sentences

Popular in Grammar & Usage

See More

'Affect' vs. 'Effect'

Merriam-Webster’s Great Big List of Words You Love to Hate

The Exceptions of '-s' and '-es' Plurals

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?
See More

Popular in Wordplay

See More

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'

9 Words That Sound Like Insults But Aren't

7 Words for Bad Endings and Rough Situations

Did 'orange' the fruit or the color come first?
See More

Popular

See More

'Affect' vs. 'Effect'

16 Food Words Recently Added to the Dictionary

The Real Origin of 'Supercalifragilistic'
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
artwork of illustrated limes with the text limes and smile with an arrow connecting the two words
Quiz: Spot the Anagram! Scramble these words to find new words with the e...
See All