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

Synonyms & Similar Words

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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 fate of Melekeok, a chiefdom of 300 people, is echoed by stories from many island nations in remote parts of the vast Pacific Ocean. — ABC News, 3 Sep. 2026 The vast majority of speakers, including an array of November candidates, favored Simmons and Miles’s viewpoint. — Rachel Royster, Fort Worth Star-Telegram, 2 Sep. 2026 The last two flu seasons were especially harsh, with unusually high numbers of child deaths — the vast majority of them in unvaccinated kids. — Lauran Neergaard, Los Angeles Times, 2 Sep. 2026 The thing is, the vast majority of people in their day-to-day lives won’t need to monitor for ketoacidosis. — Victoria Song, The Verge, 2 Sep. 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

Steinem, who struggled with stage fright most of her life, talked with women at gigantic conferences and in intimate kaffeeklatsches.

— Los Angeles Times, Los Angeles Times, 3 Sep. 2026
But chaos ensues when Nick and Troy hijack one of those parade vehicles that just happens to be equipped with a gigantic nuclear bomb.

— Pete Hammond, Deadline, 2 Sep. 2026

Definition of gigantic

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

Then, the Iran war started, resulting in massive disruption to the Strait of Hormuz, once one of the world's busiest oil-shipping lanes.

— Anniek Bao, CNBC, 3 Sep. 2026
Images of massive fires at oil refineries and warehouses showed up online despite restrictions on publication of content detailing the attacks.

— ABC News, ABC News, 3 Sep. 2026

Definition of massive

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

Chinese leader Xi Jinping, by comparison, hasn’t just been building colossal scale in priority sectors — robotics, aerospace, green tech.

— Andy Browne, semafor.com, 1 Sep. 2026
The two bodies of water are nestled just north of an area where hundreds of people were killed by colossal landslides on the Nepal-China border on Wednesday.

— Sophie Tanno, CNN Money, 29 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 5 Sep. 2026.

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Synonyms of vast

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