Synonyms of vast

vast

adjective

ˈvast 

as in huge

unusually large

a vast expanse of land just waiting to be settled

Synonyms & Similar Words

• huge
• enormous
• gigantic
• tremendous
• massive
• giant
• immense
• colossal
• mammoth
• monumental
• astronomical
• mountainous
• sizable
• monstrous
• bumper
• big
• mighty
• titanic
• grand
• monster
• great
• oceanic
• gargantuan
• prodigious
• humongous
• cosmic
• considerable
• mega
• substantial
• oversize
• planetary
• galactic
• heroic
• super
• vasty
• whopping
• elephantine
• herculean
• extensive
• majestic
• handsome
• jumbo
• Himalayan
• staggering
• cyclopean
• formidable
• good
• pharaonic
• gigantesque
• major
• infinite
• Brobdingnagian
• supersized
• leviathan
• voluminous
• imposing
• overwhelming
• goodly
• supersize
• king-size
• super-duper
• gross
• whacking
• tidy
• walloping
• hefty
• outsize
• overgrown
• stupendous
• bulky
• cavernous
• grandiose
• boundless
• largish
• lofty
• immeasurable
• hulking
• monolithic
• towering
• august

Antonyms & Near Antonyms

• tiny
• minuscule
• infinitesimal
• microscopic
• diminutive
• miniature
• small
• pocket
• micro
• little bitty
• bitty
• wee
• teeny
• teensy
• Lilliputian
• little
• puny
• minute
• pygmy
• smallish
• midget
• petite
• mini
• undersized
• microminiature
• teensy-weensy
• teeny-weeny
• bantam
• dinky
• dwarfish
• pint-size
• half-pint

Synonym Chooser

How is the word vast distinct from other similar adjectives?

Some common synonyms of vast are colossal, enormous, gigantic, huge, immense, and mammoth. While all these words mean "exceedingly large," vast usually suggests immensity of extent.

the vast Russian steppes

When might colossal be a better fit than vast?

The words colossal and vast can be used in similar contexts, but colossal applies especially to a human creation of stupendous or incredible dimensions.

a colossal statue of Lincoln

How do enormous and immense relate to one another, in the sense of vast?

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

Where would gigantic be a reasonable alternative to vast?

Although the words gigantic and vast have much in common, gigantic stresses the contrast with the size of others of the same kind.

a gigantic sports stadium

When could huge be used to replace vast?

The synonyms huge and vast are sometimes interchangeable, but huge commonly suggests an immensity of bulk or amount.

incurred a huge debt

When would mammoth be a good substitute for vast?

The meanings of mammoth and vast largely overlap; however, mammoth suggests both hugeness and ponderousness of bulk.

a mammoth boulder

Example Sentences

Recent Examples of vast

The vast, indifferent Moroccan desert acts as a major character, stripping the human characters bare and forcing a primal confrontation with mortality, loss, and the unconstrained forces of nature. —Robert Lang, Deadline, 7 Jan. 2026

The space underneath is vast and versatile, and the headboard is stylish and easy to design around. —Nashia Baker, Architectural Digest, 7 Jan. 2026

These systems learn by ingesting vast troves of data in a process called training. —Ben Brubaker, Quanta Magazine, 7 Jan. 2026

Perhaps this shouldn’t come as a surprise, given that the vast majority of members of SAG-AFTRA are Americans. —Scott Feinberg, HollywoodReporter, 7 Jan. 2026