VAST Synonyms: 123 Similar and Opposite Words

Q: How is the word 'vast' distinct from other similar adjectives?

Some common synonyms of vast are colossal , enormous , gigantic , huge , immense , and mammoth . While all these words mean "exceedingly large," vast usually suggests immensity of extent. // the vast Russian steppes

Q: When might 'colossal' be a better fit than 'vast'?

The words colossal and vast can be used in similar contexts, but colossal applies especially to a human creation of stupendous or incredible dimensions. // a colossal statue of Lincoln

Q: How do 'enormous' and 'immense' relate to one another, in the sense of 'vast'?

Enormous and immense both suggest an exceeding of all ordinary bounds in size or amount or degree, but enormous often adds an implication of abnormality or monstrousness. // an enormous expense // an immense shopping mall

Q: Where would 'gigantic' be a reasonable alternative to 'vast'?

Although the words gigantic and vast have much in common, gigantic stresses the contrast with the size of others of the same kind. // a gigantic sports stadium

Q: When could 'huge' be used to replace 'vast'?

The synonyms huge and vast are sometimes interchangeable, but huge commonly suggests an immensity of bulk or amount. // incurred a huge debt

Q: When would 'mammoth' be a good substitute for 'vast'?

The meanings of mammoth and vast largely overlap; however, mammoth suggests both hugeness and ponderousness of bulk. // a mammoth boulder

vast

adjective

ˈvast

Definition of vast

as in huge

unusually large a vast expanse of land just waiting to be settled

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How is the word vast distinct from other similar adjectives?

Some common synonyms of vast are colossal, enormous, gigantic, huge, immense, and mammoth. While all these words mean "exceedingly large," vast usually suggests immensity of extent.

the vast Russian steppes

When might colossal be a better fit than vast?

The words colossal and vast can be used in similar contexts, but colossal applies especially to a human creation of stupendous or incredible dimensions.

a colossal statue of Lincoln

How do enormous and immense relate to one another, in the sense of vast?

Enormous and immense both suggest an exceeding of all ordinary bounds in size or amount or degree, but enormous often adds an implication of abnormality or monstrousness.

an enormous expense

an immense shopping mall

Where would gigantic be a reasonable alternative to vast?

Although the words gigantic and vast have much in common, gigantic stresses the contrast with the size of others of the same kind.

a gigantic sports stadium

When could huge be used to replace vast?

The synonyms huge and vast are sometimes interchangeable, but huge commonly suggests an immensity of bulk or amount.

incurred a huge debt

When would mammoth be a good substitute for vast?

The meanings of mammoth and vast largely overlap; however, mammoth suggests both hugeness and ponderousness of bulk.

a mammoth boulder

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 vast The Cambrian explosion may owe its vast biodiversity acceleration to the development of feces. — J. B. MacKinnon, Harpers Magazine, 27 Oct. 2026 The vast Puya de Raimondi forest is on your doorstep, where thousands of giant bromeliads—the largest on the planet—rise like sentinels over the highlands. — Luke Abrahams, Vogue, 27 Oct. 2026 Gomez runs on anti-Trump record Despite the abuse allegations, Gomez has the power of incumbency and name recognition in a vast and diverse district. — Dakota Smith, Los Angeles Times, 27 Oct. 2026 The forest absorbs vast amounts of carbon dioxide, a greenhouse gas that drives global warming. — ABC News, 27 Oct. 2026 See All Example Sentences for vast

Recent Examples of Synonyms for vast

Adjective

The Bruins took a huge hit with their top six players all getting drafted by WNBA teams.

— ABC News, ABC News, 25 Oct. 2026
With its available sun-deflecting bright-white fabric and huge garage door-like entryway, the tent makes for a natural day shelter for events out in the sun, rain and wind.

— New Atlas, New Atlas, 25 Oct. 2026

Definition of huge

Adjective

As that enormous dome thinned through the Holocene, its margin withdrew up onto Baffin Island, and what’s left today is the deflated core of something that was once two miles thick.

— Jacek Krywko, ArsTechnica, 24 Oct. 2026
That move sparked enormous street protests in Israel, and alarmed many Israeli citizens overseas.

— Daniel Brook, New Yorker, 24 Oct. 2026

Definition of enormous

Adjective

The fair had been paying about $1 million a year for the gigantic space, which has hosted nearly 300 galleries in some editions.

— Brian Boucher, ARTnews.com, 19 Oct. 2026
On Friday, that thought process took another gigantic step, as those in charge of putting a product on television have all but signed the official paperwork to once again expand the college football playoff.

— Trey Wallace OutKick, FOXNews.com, 17 Oct. 2026

Definition of gigantic

Adjective

Toronto reacquired Leonard in an offseason trade after a salary cap-circumvention scandal that led to massive sanctions against the Clippers.

— CBS News, CBS News, 22 Oct. 2026
Pearson and his brother KeShaun are the two most prominent local opponents of Elon Musk’s xAI, a subsidiary of which has developed a massive data-center complex, provocatively named Colossus, in and around South Memphis.

— Keeanga-Yamahtta Taylor, New Yorker, 22 Oct. 2026

Definition of massive

Adjective

Among the companies that pursued a traditional IPO, only Circle is trading close to its listing price—and that’s primarily thanks to the colossal opening day pop the company enjoyed back in June of 2025.

— Jeff John Roberts, Fortune, 19 Oct. 2026
Concrete, when poured over rods of steel, proved strong enough to prop up colossal skyscrapers that Julius Caesar could only have dreamed of.

— Sara Herschander, Vox, 15 Oct. 2026

Definition of colossal

Browse Nearby Words

varying

vast

vastitude

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“Vast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vast. Accessed 28 Oct. 2026.

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Synonyms of vast

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