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 Finally, on a Sunday night in January, Ricky Craig began stringing Christmas lights around the base of a vast, unidentifiable object—half of the storybook cottage formerly known as Pinky. — Nicola Twilley, New Yorker, 27 Aug. 2026 Andrew Tate, 39, a former professional kickboxer, built a vast online following espousing misogynistic and hypermasculine views. — Tim Stelloh, NBC news, 27 Aug. 2026 Or can anyone get a visa to the vast country that is the past? — Literary Hub, 27 Aug. 2026 The challenges leading up to their May 8, 2002, opening day were vast. — Breanne L. Heldman, PEOPLE, 26 Aug. 2026 See All Example Sentences for vast

Recent Examples of Synonyms for vast

Adjective

Golden Tempo, meanwhile, assumed his position near the back of the field as his deep closing style has delivered huge glory in the past.

— Danny Brewer, Forbes.com, 30 Aug. 2026
At least 788 people have been killed in Nepal following huge torrents along the Nepal-China border on Wednesday, according to local police.

— Bhadra Sharma, CNN Money, 30 Aug. 2026

Definition of huge

Adjective

That's an enormous battery for a PHEV – sufficiently large that for many owners, the gasoline engine could remain largely dormant during normal commuting.

— New Atlas, New Atlas, 29 Aug. 2026
The sport generates enormous media and sponsorship revenues, drives conference realignment and finances many of the other sports that universities operate.

— Joshua Hong, Fortune, 29 Aug. 2026

Definition of enormous

Adjective

Keenum, in his 15th season, remains a tremendous resource for both younger quarterbacks.

— Dan Wiederer, New York Times, 30 Aug. 2026
First of all, with its WFI, it's meant to process a tremendous amount of data in relatively short periods of time in order to survey gigantic zones of our cosmos.

— Monisha Ravisetti, Space.com, 30 Aug. 2026

Definition of tremendous

Adjective

However, fundraising on such a massive scale has also heightened market concerns over long-term capacity oversupply.

— , CNBC, 28 Aug. 2026
Trump then argued that a massive renovation of the building can’t be completed without his fundraising – and recognition for it with his name on the building and grounds – even though Congress appropriated $257 million for the project.

— Bart Jansen, USA Today, 27 Aug. 2026

Definition of massive

Adjective

What’s more, engineers will also be able to use the giant crane in the growing offshore wind industry.

— Georgina Jedikovska, Interesting Engineering, 28 Aug. 2026
The filming site was an empty office building in Fremont, California, and the explosion was real; pyrotechnician Tom Fisher used hundreds of gallons of gas to create that giant fireball.

— ArsTechnica, ArsTechnica, 28 Aug. 2026

Definition of giant

Adjective

This position — especially once assistant head coach Frank Smith arrived — requires immense mental aptitude.

— Alec Lewis, New York Times, 31 Aug. 2026
As trains must cross a structure that shifts constantly with wind and waves, engineers spent years developing unprecedented technologies to handle the immense weight and prevent catastrophic derailments into the water.

— Mrigakshi Dixit, Interesting Engineering, 31 Aug. 2026

Definition of immense

Adjective

In a statement posted on social media, Obama highlighted Parton’s humble roots, colossal impact in music and Hollywood, and her philanthropic work.

— Charisma Madarang, Rolling Stone, 26 Aug. 2026
Phuket, Thailand’s largest island in the Andaman Sea, is home to a colossal 147-foot marble statue known as Big Buddha and revered for its white-sand beaches.

— Demetrius Simms, Robb Report, 26 Aug. 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 Sep. 2026.

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