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 There was no immediate evidence that Bowie had any authentic ties to Islamic State, which once controlled vast swathes of territory in Iraq and Syria. — Dave Goldiner, New York Daily News, 20 Aug. 2026 According to the Public Policy Institute of California, 79% of the state’s jail population are unsentenced and waiting for trial, meaning the vast majority of inmates in jail are people still presumed innocent. — Evelyn Ronan, Sacbee.com, 20 Aug. 2026 That helps explain the vast selection of RCPO watches at the roadshow event featuring blinding amounts of gemstones, esoteric stone dials and paperwork validating that they were restored exclusively in Geneva at the brand’s Restoration Atelier. — Victoria Gomelsky, Robb Report, 20 Aug. 2026 The feature will incorporate music from Snoop Dogg’s vast catalog. — Borys Kit, HollywoodReporter, 20 Aug. 2026 See All Example Sentences for vast

Recent Examples of Synonyms for vast

Adjective

Granted, City have made a club-record signing in Elliot Anderson, and he is expected to make a huge difference, but everything else is pending.

— Nnamdi Onyeagwara, New York Times, 16 Aug. 2026
The baryon-junction model provides another possibility At RHIC energies, a proton contains a huge number of gluons.

— Rupendra Brahambhatt, Interesting Engineering, 16 Aug. 2026

Definition of huge

Adjective

Chichibu made its money in silk, because the basin is poor country for rice but good country for mulberry, and the silk paid for the enormous festival floats the town is known for.

— Christopher Elliott, Forbes.com, 16 Aug. 2026
Its scale reflects the enormous electricity demand generated by advanced AI computing.

— Aamir Khollam, Interesting Engineering, 15 Aug. 2026

Definition of enormous

Adjective

Kneeling beside the fallen buck, Charles, an avid trophy bowhunter, ran his hands over the gigantic rack.

— Jeff Murray, Outdoor Life, 20 Aug. 2026
Lakes Mead and Powell, which are essentially one gigantic reservoir separated by the Grand Canyon, hold just under 60% of the total watercurrently stored in the Colorado River basin.

— Laura Paddison, CNN Money, 16 Aug. 2026

Definition of gigantic

Adjective

Yet that is the attitude that has led to tremendous underperformance by managers who think like that.

— Jim Cramer, CNBC, 16 Aug. 2026
Transit has this tremendous scale and a startling capacity to shift between the intimate and the grand, as well as an intricate architecture.

— Literary Hub, Literary Hub, 14 Aug. 2026

Definition of tremendous

Adjective

According to a new study published in Geology, the massive escarpment formed around 800 million to 750 million years ago as the ancient supercontinent Rodinia began to break apart.

— Kaif Shaikh, Interesting Engineering, 21 Aug. 2026
Coach Keidane McAlpine hopes the Bulldogs, who dominated from start to finish on a massive stage, left a lasting impression.

— Sarah Spencer, AJC.com, 21 Aug. 2026

Definition of massive

Adjective

Hardware rich… Engineers have reams of data from all 13 test flights of Starship and its giant booster rocket, known as the Super Heavy.

— Stephen Clark, ArsTechnica, 21 Aug. 2026
Returning and reflying both Starship stages is a key component in SpaceX's design for the giant rocket, which will be the largest, most powerful launch vehicle in history once the company works out all its kinks.

— Josh Dinner, Space.com, 21 Aug. 2026

Definition of giant

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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 22 Aug. 2026.

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Synonyms of vast

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