Synonyms of gigantic

gigantic

adjective

jī-ˈgan-tik 

as in huge

unusually large

a raccoon got into the trash and now there's a gigantic mess in our backyard

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

Synonym Chooser

How is the word gigantic distinct from other similar adjectives?

Some common synonyms of gigantic are colossal, enormous, huge, immense, mammoth, and vast. While all these words mean "exceedingly large," gigantic stresses the contrast with the size of others of the same kind.

a gigantic sports stadium

When is colossal a more appropriate choice than gigantic?

The words colossal and gigantic 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 gigantic?

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

When might huge be a better fit than gigantic?

While the synonyms huge and gigantic are close in meaning, huge commonly suggests an immensity of bulk or amount.

incurred a huge debt

When could mammoth be used to replace gigantic?

While in some cases nearly identical to gigantic, mammoth suggests both hugeness and ponderousness of bulk.

a mammoth boulder

When can vast be used instead of gigantic?

In some situations, the words vast and gigantic are roughly equivalent. However, vast usually suggests immensity of extent.

the vast Russian steppes

Example Sentences

Recent Examples of gigantic

The Guinea native is now chairman of the Strategic Committee of the country’s gigantic Simandou mine, a project that has cost some $20 billion to tap one of the world’s largest iron ore deposits. — Kerry A. Dolan, Forbes.com, 17 July 2026

Last year was marked by an era of Hollywood belt-tightening, after some gigantic box office duds and some production moving out of Los Angeles. — Phillip Molnar, San Diego Union-Tribune, 16 July 2026

Christopher Nolan’s passionate love affair with the Premium Large Format moviegoing experience peaks with The Odyssey, a gigantic undertaking that marks the first feature shot entirely with IMAX Film Cameras. — David Rooney, HollywoodReporter, 15 July 2026

After widespread complaints and consternation around the 2026 FIFA World Cup from European fans, commentators, and certain domestic sportswriters, there's no question that this year's tournament has been a gigantic, tremendous success. — Ian Miller Outkick, FOXNews.com, 13 July 2026