vast
Americanadjective
-
of very great area or extent; immense.
the vast reaches of outer space.
- Synonyms:
- stupendous, colossal, gigantic, boundless, measureless
- Antonyms:
- small
-
of very great size or proportions; huge; enormous.
vast piles of rubble left in the wake of the war.
-
very great in number, quantity, amount, etc..
vast sums of money.
-
very great in degree, intensity, etc..
an artisan of vast skill.
noun
adjective
-
unusually large in size, extent, degree, or number; immense
-
(prenominal) (intensifier)
in vast haste
noun
-
poetic immense or boundless space
-
dialect a very great amount or number
Other Word Forms
Derived Forms
Etymology
Origin of vast
First recorded in 1565–75, from Latin vastus “empty, immense”
Explanation
If you’re in a boat out on the water and you can’t see any land, then the body of water you’re in is probably vast, or enormous. Things that are described as vast include oceans, seas, the heavens, deserts, and the surface of the moon. Even places that can't be seen or touched, like imaginations, are called vast, because of the endless ideas that come out of them. Someone with a vast imagination is very creative, and a place with a vast landscape is very large. Possibilities are vast, and so are the vocabularies of the world, filling vast volumes.
Vocabulary lists containing vast
Figurative Language in King's "I Have a Dream" Speech (1963)
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"The Ravine," Vocabulary from the short story
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Unit 1: Telling Details
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In his immensely engaging book, “This Vast Enterprise,” Craig Fehrman strives to capture the motivations, values and ideas of the individuals who contributed to this multifaceted historical event.
From The Wall Street Journal • Apr. 16, 2026
Vast improvement under Bemand made a repeat of the 88-10 defeat at Twickenham two years ago unlikely, with the visitors fronting up bravely in defence.
From BBC • Apr. 11, 2026
Vast amounts of scattered information were categorized and mapped.
From MarketWatch • Apr. 4, 2026
Vast news deserts with no local coverage exist across the country, and independent reporting of any issue, concern, pastime, government action, youth activity or local PTA is nearly impossible to find.
From Salon • Feb. 6, 2026
“Surely you will not be going to the Vast Wall as well?”
From "When the Sea Turned to Silver" by Grace Lin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
