vast

1 of 2

adjective

: very great in size, amount, degree, intensity, or especially in extent or range
vast knowledge
a vast expanse
vastness noun

vast

2 of 2

noun

: a boundless space
the vast of heavenJohn Milton
Choose the Right Synonym for vast

enormous, immense, huge, vast, gigantic, colossal, mammoth mean exceedingly large.

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

huge commonly suggests an immensity of bulk or amount.

incurred a huge debt

vast usually suggests immensity of extent.

the vast Russian steppes

gigantic stresses the contrast with the size of others of the same kind.

a gigantic sports stadium

colossal applies especially to a human creation of stupendous or incredible dimensions.

a colossal statue of Lincoln

mammoth suggests both hugeness and ponderousness of bulk.

a mammoth boulder

Examples of vast in a Sentence

Adjective She has a vast amount of knowledge on this subject. The policy is supported by the vast majority of citizens. a vast expanse of land
Recent Examples on the Web
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.
Adjective
The Arctic Ocean, nearly isolated from larger oceans by land bridges, became a vast, shallow, nutrient-rich basin. Scott Travers, Forbes, 7 Mar. 2025 With game file sizes ballooning into the hundreds of gigabytes, media going lost every day, and creative projects taking up vast swaths of drive bandwidth, expanding your computer's storage is a no-brainer. K. Thor Jensen, PCMAG, 7 Mar. 2025 But while McKinley’s story may provide insight into Trump’s expansive presidential ambitions, the Ohioan and his era also illustrate vast differences between McKinley’s time and our own. Robert W. Merry, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 7 Mar. 2025 History of execution by firing squad Over 1,600 executions have taken place in the United States since the 1970s, and the vast majority have been carried out by lethal injection, according to the Death Penalty Information Center (DPI), a nonprofit resource for data on the practice of executions. Ryan Young, CNN, 7 Mar. 2025 See All Example Sentences for vast

Word History

Etymology

Adjective

borrowed from Latin vāstus or vastus "devoid of habitation, desolate, dreary," also, "of great size, immense," probably in part continuing Indo-European *h1u̯eh2-sto- (whence Old High German wuosti "empty, deserted," Old English wēste, Old Irish fás), in part conflated with another base *wast- of uncertain origin

Noun

noun derivative of vast entry 1, perhaps by analogy with deep entry 1, deep entry 3

First Known Use

Adjective

1585, in the meaning defined above

Noun

1604, in the meaning defined above

Time Traveler
The first known use of vast was in 1585

Browse Nearby Words

Cite this Entry

“Vast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vast. Accessed 12 Mar. 2025.

Kids Definition

vast

adjective
ˈvast
: very great in extent, size, amount, degree, or intensity
a vast stretch of desert
vast knowledge
vastly adverb
vastness
ˈvas(t)-nəs
noun

More from Merriam-Webster on vast

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