VASTLY Synonyms: 158 Similar and Opposite Words

vastly

adverb

ˈvast-lē

Definition of vastly

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

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 This will be an entirely different election with a vastly higher turnout and many more unaffiliated voters who don’t belong to any party. — Sun Sentinel Editorial Board, Sun Sentinel, 20 Aug. 2026 The tech offers a vastly safer and more sustainable solution for mass-producing grid-scale energy storage by replacing toxic, scarce metals and flammable solvents with non-toxic, eco-friendly materials. — Mrigakshi Dixit, Interesting Engineering, 20 Aug. 2026 Lakefront lot splits, which vastly increase a property’s value, are rare in Winter Park. — Brian Bell, The Orlando Sentinel, 19 Aug. 2026 Ukraine and Iran have both demonstrated how to adapt cheaper technologies for both offensive and defensive purposes, neutralizing their opponents’ advantage in vastly more expensive high-tech systems. — Mark Leonard, Foreign Affairs, 18 Aug. 2026 See All Example Sentences for vastly

Recent Examples of Synonyms for vastly

Adverb

The balance between efficiency and pleasantness in doing business seems extremely hard to achieve.

— Judith Martin, Mercury News, 25 Aug. 2026
Naegleria fowleri infections are extremely rare, with only 180 confirmed between 1937 and 2025, according to the Louisiana Department of Health.

— Diego Mendoza, CNN Money, 24 Aug. 2026

Definition of extremely

Adverb

Its work-in-progress was also one of five titles at the 2025 prestigious and highly selective Annecy Animation Showcase at the Cannes Festival’s Marché du Film.

— Rafa Sales Ross, Variety, 27 Aug. 2026
Despite its highly specialized geometry, the Swoop felt like a fundamentally good bicycle.

— ArsTechnica, ArsTechnica, 26 Aug. 2026

Definition of highly

Adverb

Iran’s currency – the rial – is incredibly weak and dropped to a record low of two million against the US dollar yesterday.

— Nadeen Ebrahim, CNN Money, 25 Aug. 2026
Instead of using the developed AI software to create the animation, the film is incredibly homespun.

— Jason P. Frank, Vulture, 24 Aug. 2026

Definition of incredibly

Adverb

If the pH gets too acidic, nitrogen uptake is greatly reduced, leading to a deficiency in the plant, even if there’s plenty of nitrogen in the potting soil.

— Andy Wilcox, Better Homes & Gardens, 22 Aug. 2026
Corky Kell + Dave Hunter Classic winners Brookwood, Roswell and North Gwinnett all greatly improved their positions with wins last week at Mercedes-Benz Stadium.

— Jack Leo, AJC.com, 21 Aug. 2026

Definition of greatly

Adverb

So what had begun as a high school problem-solving project became something considerably more ambitious.

— Théoden Janes, Charlotte Observer, 25 Aug. 2026
My analysis, built on the County’s framework and precedent, puts the exposure at a considerably higher level.

— Joseph M. Singer, HollywoodReporter, 25 Aug. 2026

Definition of considerably

Adverb

The agreement Hansen describes would be a much larger legal matter than a standard screening NDA, and would not be asked of other individuals screening the film — including press and third-party marketing agencies.

— Clayton Davis, Variety, 21 Aug. 2026
But as the drugs move from a specialist injectable treatment toward an increasingly mainstream weight-management category, beauty is beginning to confront a much bigger commercial opportunity, which — according to insiders — is much more complex.

— Perdita Nouril, Vogue, 21 Aug. 2026

Definition of much

Browse Nearby Words

vastitude

vastly

vastness

See all Nearby Words

Cite this Entry

Style

“Vastly.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vastly. Accessed 28 Aug. 2026.

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Synonyms of vastly

adverb

Example Sentences

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