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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:

They expected that their vastly superior, Western-supplied air force would soon be able to bomb the Houthis to the negotiating table and that the rebels would quickly sue for peace.

From BBC Jul. 23, 2026

The legislation vastly expanded the FDA’s remit and imposed hefty food-safety compliance burdens on hundreds of thousands of farms and food producers.

From The Wall Street Journal Jul. 22, 2026

Its ascent has revived questions about whether other model developers are vastly overspending on AI hardware and computing power.

From MarketWatch Jul. 21, 2026

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

From Barron's Jul. 14, 2026

His critics, it should also be noted, were a decided minority, vastly outnumbered by his countless legions of supporters.

From "Founding Brothers: The Revolutionary Generation" by Joseph J. Ellis

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