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

With Thursday’s sign-off by the California Public Utilities Commission, the mammoth merger is expected to close next week. — Meg James, Los Angeles Times, 14 Aug. 2026

Last year, the Portland Art Museum debuted the results of its mammoth renovation, which cost $116 million to complete. — News Desk, Artforum, 12 Aug. 2026

Noun

According to this theory, those now-extinct megafauna—the giant ground sloths and the giant beavers, the mastodons and mammoths, and even the lions and dire wolves—were relatively quickly hunted to extinction. — Literary Hub, 10 June 2026

For the next 49,000 years, the sticky pits captured virtually everything that fell or walked onto them, from grains of pollen borne by the wind to hapless ancient camels and Columbian mammoths. — Los Angeles Times, 6 June 2026