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

Its gigantic coal infrastructure, coal-to-chemical plants, and processing facilities could readily be adapted to handle the load. —Christopher McFadden, Interesting Engineering, 24 May 2026

Under the bridge, 11 different shark species and a gigantic grouper swim beneath your feet. —Noelle Harff, San Diego Union-Tribune, 19 May 2026

Yeah, add that to the long list of unsupported claims about these vaccines that have ranged from various anti-vaxxers asserting that the vaccines will turn you into a gigantic magnet to attributing seemingly every celebrity illness and death during the COVID-19 pandemic to the COVID-19 vaccines. —Bruce Y. Lee, Forbes.com, 18 May 2026

There on the screen, staring back at me, are two gigantic black eyes and a mischievous smile stitched on a massive, crocheted head — features of the mysterious, endlessly cheeky mask that has become Chuyin’s signature. —Julyssa Lopez, Rolling Stone, 17 May 2026