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

That's when the Brewers' incredible penchant for outperforming on batting average on balls in play reared its gigantic head yet again.

— Ian Miller OutKick, FOXNews.com, 27 Oct. 2026
His trust in his lead deckhand would have created an atmosphere of collaboration within the team were Matt’s ego not so gigantic.

— Rafaela Bassili, Vulture, 27 Oct. 2026

Definition of gigantic

Adjective

Eventually the inevitability of gravity brings them close enough to suddenly merge, sending out a tremendous blast of matter and energy that can outshine the sun by a factor of many billions, though just for the briefest fraction of a second.

— Phil Plait, Scientific American, 30 Oct. 2026
His reasoning is that quantum carries both tremendous risk and opportunity.

— Sam Birchall, Fortune, 29 Oct. 2026

Definition of tremendous

Adjective

The massive fire that broke out last November engulfed seven buildings in an apartment complex in a northern suburban district, killing 168 people and displacing thousands of others.

— Arkansas Online, Arkansas Online, 30 Oct. 2026
R136a1 is just such a star, the most massive star known, at several hundred times the sun’s bulk.

— Phil Plait, Scientific American, 30 Oct. 2026

Definition of massive

Adjective

One way to understand nuclear reactors is to think of them as giant kettles.

— Georgina Jedikovska, Interesting Engineering, 30 Oct. 2026
Lakers scoring phenom Luka Doncic missed his first game of the young season with back tightness, leaving a giant hole in their offense with the NBA’s leading scorer (36 points per game) sitting out.

— Broderick Turner, Los Angeles Times, 29 Oct. 2026

Definition of giant

Adjective

The most successful animal artist of all time is surely Edwin Landseer (1802-1873), perhaps most recognizable for the four colossal sculptures of lions guarding the base of Nelson’s Column, in London’s Trafalgar Square.

— Literary Hub, Literary Hub, 28 Oct. 2026
Fertility startups have proliferated and expanded across the country, undergirded by colossal private equity and venture capital investments seeking returns.

— Pooja Yerramilli, STAT, 28 Oct. 2026

Definition of colossal

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varying

vast

vastitude

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“Vast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vast. Accessed 1 Nov. 2026.

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