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

Ted Taylor and Freeman Dyson, two other mid-century savants of the atom, spent years at General Atomic designing a gigantic spacecraft that would weigh thousands of tons and propel itself to Mars, Saturn, and the nearby stars with nuclear explosions. —Ross Andersen, The Atlantic, 11 Mar. 2026

Elon Musk said SpaceX is pushing back even further the maiden launch of the company's next version of its gigantic and powerful Starship rocket. —Eric Lagatta, USA Today, 10 Mar. 2026

Their next album has to hit harder than the last, their growing Street Mob Records roster depends on their vision for the label, and a gigantic tour leaves no room for mistakes. —Tomás Mier, Rolling Stone, 9 Mar. 2026

But California’s high cost of living is a gigantic gripe. —Los Angeles Times, 9 Mar. 2026