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 restaurant also had a vast wine, beer, and cocktail menu. — Emma Hall, Sacbee.com, 16 July 2026 In the eastern Indian Ocean, south of Java in the vast sea stretching toward Australia, a fishing vessel slightly alters its course while operating near the boundary of its authorized fishing ground. — IEEE Spectrum, 16 July 2026 This was how Szymborska chose to commemorate the loss of her own great love; quietly, obliquely, and with vast imaginative generosity. — Literary Hub, 16 July 2026 However, the vast majority had very little to do with the park’s natural wonders. — Andrew Paul, Popular Science, 16 July 2026 See All Example Sentences for vast

Recent Examples of Synonyms for vast

Adjective

Benjamin Willis, a Lorain, Ohio, teenager and huge Marvel movie fan, opened his mouth in awe.

— Rodney Ho, AJC.com, 6 July 2026
That water supply is not the same water supply that goes toward agriculture, which accounts for a huge portion of the water used in the country, Anisfeld said.

— Jeanine Santucci, USA Today, 5 July 2026

Definition of huge

Adjective

Organizations spend enormous resources trying to create a sense of belonging from the center through onboarding experiences, engagement surveys, retreats, values statements, and culture programs.

— Julia Dhar, Time, 11 July 2026
Pilots spend enormous amounts of time in simulators where multiple failures are intentionally layered on top of one another.

— Demetri Giannikopoulos, Forbes.com, 11 July 2026

Definition of enormous

Adjective

Last year was marked by an era of Hollywood belt-tightening, after some gigantic box office duds and some production moving out of Los Angeles.

— Phillip Molnar, San Diego Union-Tribune, 16 July 2026
Christopher Nolan’s passionate love affair with the Premium Large Format moviegoing experience peaks with The Odyssey, a gigantic undertaking that marks the first feature shot entirely with IMAX Film Cameras.

— David Rooney, HollywoodReporter, 15 July 2026

Definition of gigantic

Adjective

County officials are asking the board for the South Fulton Municipal Regional Jail Authority to approve a resolution authorizing the authority to issue bonds for the massive project that could take a decade to complete.

— Reed Williams, AJC.com, 17 July 2026
The potential spread of massive water and electricity-consuming data centers into Florida has sparked fierce opposition from thousands of residents and drawn dividing lines between its most powerful politicians.

— Alexandra Phelps, Miami Herald, 17 July 2026

Definition of massive

Adjective

Pop these on, plug them into your phone or laptop, and boom – an instant giant display for your eyes only.

— New Atlas, New Atlas, 17 July 2026
Cyclops Odysseus’s wittiest ploy in Homer’s tale concerns him and his men’s escape from the clutches of Polyphemus, the giant cyclops (and son of Poseidon).

— Marlow Stern, Variety, 17 July 2026

Definition of giant

Adjective

In the immense downtime between scenes during my visit this past September, the crew of HBO’s Game of Thrones prequel House of the Dragon trudges among plastic tents serving as makeshift production offices.

— Jackson McHenry, Vulture, 13 July 2026
But it's not done yet; the immense telescope is about to get even larger.

— Chelsea Gohd, Space.com, 13 July 2026

Definition of immense

Adjective

Production designer Ruth De Jong’s colossal sets (the city of Troy is especially impressive) and Ellen Mirojnick’s costumes, drawn from both history and myth, add to the immersive feel of the storytelling.

— David Rooney, HollywoodReporter, 15 July 2026
In fact, Gabrielle and Katerina attribute the restaurant’s early colossal success to a Los Angeles Times review.

— Maddie Connors, Los Angeles Times, 14 July 2026

Definition of colossal

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“Vast.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/vast. Accessed 18 Jul. 2026.

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