vast

1 of 2

adjective

Synonyms of vastnext
: 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 heaven …John 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
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Adjective
Indonesia is embarking on a plan to make toll roads across the country into emergency runways for its fighter jets, giving it the equivalent of multiple aircraft carriers across the vast archipelago. Brad Lendon, CNN Money, 12 Feb. 2026 Mountbatten-Windsor was stripped of his royal title in October 2025 and pushed out of his vast home at Royal Lodge after reports of his association with Epstein hit a fever pitch. Kathryn Palmer, USA Today, 11 Feb. 2026 Most payments arrive quickly because the vast majority of recipients are paid electronically. Dante Motley, Austin American Statesman, 11 Feb. 2026 The vast majority of kava tea sold is known as noble kava. Bestreviews, Mercury News, 11 Feb. 2026 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 15 Feb. 2026.

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

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