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Synonyms

vastly

American  
[vast-lee, vahst‐] / ˈvæst li, ˈvɑst‐ /

adverb

  1. to an extremely great extent or degree; hugely.

    We still have essentially the same brains as early humans, but most of us live in vastly different circumstances than they did.


Other Word Forms

Etymology

Origin of vastly

vast ( def. ) + -ly

Vocabulary lists containing vastly

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Europeans are living longer than ever before thanks to vastly improved healthcare, and better life and social conditions.

From Barron's Jul. 14, 2026

Back in 2023, Slate’s Anna Sale spoke to couples with vastly different attitudes about how much to spend.

From Slate Jul. 10, 2026

Each one requires different solutions and can have vastly different impacts on your credit score.

From MarketWatch Jul. 10, 2026

After the lockdown was lifted, Kalki said she "met mothers who have had vastly different experiences".

From BBC Jul. 9, 2026

Schools with vastly greater financial resources, boasting higher-achieving students born to wealthier parents, cannot match the quality and accomplishments of Truman Drama.

From "Drama High" by Michael Sokolove

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