Synonyms of mammoth

mammoth 1 of 2

adjective

as in gigantic

unusually large

a mammoth book with color plates of birds native to North America

Synonyms & Similar Words

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

Antonyms & Near Antonyms

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

mammoth

2 of 2

noun

ˈma-məth 

as in whale

something that is unusually large and powerful

even as sport-utility vehicles go, that one is a mammoth

Synonyms & Similar Words

• whale
• giant
• dinosaur
• monster
• elephant
• behemoth
• colossus
• titan
• Goliath
• mastodon
• hulk
• leviathan
• blockbuster
• jumbo
• whopper
• dreadnought
• heavyweight
• bulk
• juggernaut
• giantess
• amazon
• steamroller

Antonyms & Near Antonyms

• diminutive
• dwarf
• midget
• mite
• half-pint
• pygmy
• runt
• lightweight
• wisp
• weakling
• wimp
• peewee
• nonentity
• whippersnapper
• twerp

Synonym Chooser

How is the word mammoth distinct from other similar adjectives?

Some common synonyms of mammoth are colossal, enormous, gigantic, huge, immense, and vast. While all these words mean "exceedingly large," mammoth suggests both hugeness and ponderousness of bulk.

a mammoth boulder

When might colossal be a better fit than mammoth?

Although the words colossal and mammoth have much in common, colossal applies especially to a human creation of stupendous or incredible dimensions.

a colossal statue of Lincoln

How are the words enormous and immense related as synonyms of mammoth?

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 would gigantic be a good substitute for mammoth?

The words gigantic and mammoth can be used in similar contexts, but gigantic stresses the contrast with the size of others of the same kind.

a gigantic sports stadium

When can huge be used instead of mammoth?

In some situations, the words huge and mammoth are roughly equivalent. However, huge commonly suggests an immensity of bulk or amount.

incurred a huge debt

Where would vast be a reasonable alternative to mammoth?

The meanings of vast and mammoth largely overlap; however, vast usually suggests immensity of extent.

the vast Russian steppes

Example Sentences

Recent Examples of mammoth

Adjective

Several local community organizations supported Sterling Bay’s mammoth 2019 proposal, and it was approved during the final months of former Mayor Rahm Emanuel’s administration. —Brian J. Rogal, Chicago Tribune, 15 Jan. 2026

Selling the hotel was BioMed Realty, a San Diego firm that is focused more on the life science and technology industries, although BioMed is owned by Blackstone, a mammoth private equity firm that does invest in hotels. —Lori Weisberg, San Diego Union-Tribune, 13 Jan. 2026

Noun

Scientists have recovered ancient molecules of RNA from a juvenile mammoth namedYuka, who died 40,000 years ago in what is now Siberia. —Katie Hunt, CNN Money, 15 Nov. 2025

She's excited by the results - and not just for mammoths. —NPR, 14 Nov. 2025