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Definitions

vast

[vast] / væst /
ADJECTIVE
very large; wide in range
Synonyms
STRONGEST
ample big boundless broad colossal endless enormous extensive far-flung far-reaching gigantic great huge immense infinite limitless mammoth massive monumental spacious tremendous unlimited
WEAK
all-inclusive astronomical capacious comprehensive detailed eternal expanded forever giant illimitable immeasurable measureless monstrous never-ending prodigious prolonged spread-out stretched-out sweeping titanic unbounded voluminous widespread
Antonyms
STRONGEST
bounded calculable ending finite insignificant limited little miniature minute narrow restricted short small teeny tiny trivial unimportant

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.

Inspired, Brundage became obsessed with web scrapers—automated programs that hoover up vast amounts of web data for analysis.

From The Wall Street Journal • Apr. 3, 2026

After ravens destroyed their first clutch, eagle power couple Jackie and Shadow laid new eggs — sending their vast fanbase into celebration.

From Los Angeles Times • Apr. 3, 2026

Embarking on expeditions in vast and sometimes dangerous environments, Bigfoot hunters set out with drones, infrared cameras, audio recorders and materials to cast footprints.

From BBC • Apr. 3, 2026

Bondi egregiously mishandled the Epstein files, illegally withholding vast troves of materials that she had a legal obligation to release.

From Slate • Apr. 3, 2026

This makes the vast ocean floor nothing less than the world’s greatest museum.

From "Shipwrecked!" by Martin W. Sandler

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.