: very great in size, amount, degree, intensity, or especially in extent or range
vast knowledge
a vast expanse
: a boundless space
the vast of heaven—
John Milton
John MiltonSynonyms
Adjective
- astronomical
- astronomic
- Brobdingnagian
- bumper
- colossal
- cosmic
- cosmical
- cyclopean
- elephantine
- enormous
- galactic
- gargantuan
- giant
- gigantesque
- gigantic
- grand
- herculean
- heroic
- heroical
- Himalayan
- huge
- humongous
- humungous
- immense
- jumbo
- king-size
- king-sized
- leviathan
- mammoth
- massive
- mega
- mighty
- monster
- monstrous
- monumental
- mountainous
- oceanic
- pharaonic
- planetary
- prodigious
- super
- super-duper
- supersize
- supersized
- titanic
- tremendous
- vasty
- walloping
- whacking
- whopping
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
Tribune News Service, The Mercury News, 13 Nov. 2024
More than 3,000 people have been killed in Israeli strikes on Lebanon over the last year, the vast majority in the past six weeks.
—Reuters, NBC News, 7 Nov. 2024
This means these satellites would be able to relay data to Earth and other spacecraft across vast stretches of space, likely through Starlink's laser communication system.
—Michael Kan, PCMAG, 7 Nov. 2024
This poses a serious challenge to the custodians of the existing system of national security policymaking: the uniformed military and the civil service that make up the vast majority of people tasked with overseeing any president’s agenda.
—Peter D. Feaver, Foreign Affairs, 6 Nov. 2024
See all Example Sentences for vast 
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
In the vast majority of cases, the products were dropped off without any interaction between the buyer and the delivery person, according to the study.
—Tribune News Service, The Mercury News, 13 Nov. 2024
More than 3,000 people have been killed in Israeli strikes on Lebanon over the last year, the vast majority in the past six weeks.
—Reuters, NBC News, 7 Nov. 2024
This means these satellites would be able to relay data to Earth and other spacecraft across vast stretches of space, likely through Starlink's laser communication system.
—Michael Kan, PCMAG, 7 Nov. 2024
This poses a serious challenge to the custodians of the existing system of national security policymaking: the uniformed military and the civil service that make up the vast majority of people tasked with overseeing any president’s agenda.
—Peter D. Feaver, Foreign Affairs, 6 Nov. 2024
See all Example Sentences for vast
Dictionary Entries Near vast
Cite this Entry
“Vast.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vast. Accessed 28 Nov. 2024.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share