gargantuan

adjective

gar·​gan·​tuan gär-ˈgan(t)-sh(ə-)wən 

variants often Gargantuan

: tremendous in size, volume, or degree : gigantic, colossal

gargantuan waterfalls

Did you know?

Gargantua is the name of a giant king in François Rabelais's 16th-century satiric novel Gargantua, the second part of a five-volume series about the giant and his son Pantagruel. All of the details of Gargantua's life befit a giant. He rides a colossal mare whose tail switches so violently that it fells the entire forest of Orleans. He has an enormous appetite, such that in one incident he inadvertently swallows five pilgrims while eating a salad. The scale of everything connected with Gargantua led to the adjective gargantuan, which since William Shakespeare's time has been used for anything of tremendous size or volume.

Synonyms of gargantuan

• gigantic
• huge
• enormous
• giant
• vast
• massive
• colossal
• tremendous
• mammoth
• immense
• monumental
• astronomical
• monstrous
• titanic

Examples of gargantuan in a Sentence

a creature of gargantuan proportions

people seem to be buying ever more gargantuan SUVs these days

Recent Examples on the Web

Twain was inspired to publish the ambitious Library of American Literature with 1,700 selections by 500 authors in eleven volumes, but failed to grasp the perilous economics of selling such a gargantuan series by subscription. — Literary Hub, 21 Aug. 2026

Ustyle’s engine provides a workaround to the otherwise gargantuan task of re-shooting as many outfits as there are combinations in a collection. — Roy Stephen Canivel, Footwear News, 20 Aug. 2026

The film spells out the gargantuan payouts that each Boeing CEO has received, despite the crashes and questions about their actions and the company’s faltering value. — Stuart Miller, Los Angeles Times, 19 Aug. 2026

Apartment dwellers know all too well that every square inch counts, but optimizing a smaller bathroom or half bathroom doesn’t need to feel like a gargantuan task. — Audrey Lee, Architectural Digest, 13 Aug. 2026

Word History

Etymology

Gargantua

First Known Use

1596, in the meaning defined above

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Kids Definition

gargantuan

adjective

gar·​gan·​tuan gär-ˈganch-wən 

-ə-wən

: extraordinary in size, degree, or volume : gigantic

Etymology

from Gargantua, a giant with an enormous appetite in books by the French author François Rabelais