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 Officials have acknowledged that the vast majority of these traffic fatalities are preventable with changes to infrastructure and policy. — Ariane Lange, Sacbee.com, 6 Aug. 2026 The vast majority of teams, including All Saints, Fort Worth Christian, Fort Worth Nolan Catholic, Grapevine Faith and Fort Worth Southwest Christian, are electing to play. — Charles Baggarly august 6, Fort Worth Star-Telegram, 6 Aug. 2026 The district includes the vast majority of Holocaust survivors living in Florida. — Anthony Man, Sun Sentinel, 6 Aug. 2026 Musk is steering the vast majority of SpaceX’s expenditures toward AI, a business that is growing rapidly, though not at the rate of all that spending. — Bloomberg, Mercury News, 5 Aug. 2026 See All Example Sentences for vast

Recent Examples of Synonyms for vast

Adjective

India is another huge buyer, Jungman said, accounting for about a quarter of exports, while European countries like Spain and the Netherlands are also in the mix.

— Anna Cooban, CNN Money, 2 Aug. 2026
Solo Sikoa received a huge face reaction in his tag team victory, while Nick Aldis was reinstated as SmackDown GM despite a loss to Gunther.

— Brian Mazique, Forbes.com, 2 Aug. 2026

Definition of huge

Adjective

And enormous sums of money are needed to upgrade Venezuela’s decaying infrastructure after years of underinvestment and little maintenance.

— Anna Cooban, CNN Money, 2 Aug. 2026
In their third epic encounter, Femi slayed Lesnar with an enormous Fall From Grace powerbomb to potentially send Lesnar off into retirement.

— Blake Oestriecher, Forbes.com, 2 Aug. 2026

Definition of enormous

Adjective

Musk was asked several times about the prospects for the gigantic Starship rocket that is key to SpaceX realizing his ambitions.

— Bernard Condon, Fortune, 5 Aug. 2026
While SpaceX's satellite internet division, Starlink, remains the company's key revenue driver, the group's gigantic AI capex spend is unnerving investors, helping to drag the stock price lower in Wednesday's session.

— Hugh Leask, CNBC, 5 Aug. 2026

Definition of gigantic

Adjective

Linebacker Zaire Franklin had tremendous coverage on an incomplete pass down the middle for tight end Josh Whyle.

— Rob Reischel, Forbes.com, 2 Aug. 2026
There are tremendous challenges around delivering this in practice given the differing problems and motivations across continents and federations.

— Simon Hughes, New York Times, 1 Aug. 2026

Definition of tremendous

Adjective

The massive fire, which brought more than 300 firefighters to the scene, was finally put out by Wednesday evening.

— Kerry Burke, New York Daily News, 7 Aug. 2026
As a senior leader or mid-level executive tired of the grind, consider the massive opportunity hiding in plain sight.

— Sho Dewan, Forbes.com, 7 Aug. 2026

Definition of massive

Adjective

Spaceship Earth is the iconic giant-golf-ball-looking attraction near the front entrance of the theme park.

— Dewayne Bevil, The Orlando Sentinel, 7 Aug. 2026
With an ecosystem as capricious as this, the local wildlife is born and bred to go with the flow—think gentle-but-giant humpback whales, colonies of industrious beavers, and torpedoing peregrine falcons, the fastest animals on Earth.

— Kat Chen, Condé Nast Traveler, 7 Aug. 2026

Definition of giant

Adjective

The incident also brought months of simmering cybersecurity fears to a head, demonstrating how easily AI agents could cause immense damage, while making the case for open models in the era of skyrocketing token costs.

— Samantha Subin, CNBC, 3 Aug. 2026
By squeezing the blocks together with the sample in the center, scientists apply an immense amount of pressure on it.

— Robin Macaluso, The Conversation, 3 Aug. 2026

Definition of immense

Adjective

Solar eclipses occur during the monthly new moon phase, when the lunar disk passes directly between the sun and Earth in its slightly lopsided orbit, casting its colossal shadow over a swathe of our planet's surface.

— Anthony Wood, Space.com, 5 Aug. 2026
Behind the colossal range is a stunning Moroccan-style backsplash made with deep green and white tiles.

— Claire Hoppe Norgaard, Better Homes & Gardens, 4 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 8 Aug. 2026.

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