colossal

adjective

co·​los·​sal kə-ˈlä-səl 

1

: of, relating to, or resembling a colossus

colossal statues

2

: of a bulk, extent, power, or effect approaching or suggesting the stupendous or incredible

colossal rock formations

colossal stellar explosions

3

: of an exceptional or astonishing degree

a colossal failure

a colossal bore

colossal ambition

colossally

kə-ˈlä-sə-lē 

adverb

Synonyms of colossal

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

Choose the Right Synonym for colossal

enormous, immense, huge, vast, gigantic, colossal, mammoth mean exceedingly large.

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

huge commonly suggests an immensity of bulk or amount.

incurred a huge debt

vast usually suggests immensity of extent.

the vast Russian steppes

gigantic stresses the contrast with the size of others of the same kind.

a gigantic sports stadium

colossal applies especially to a human creation of stupendous or incredible dimensions.

a colossal statue of Lincoln

mammoth suggests both hugeness and ponderousness of bulk.

a mammoth boulder

Examples of colossal in a Sentence

a colossal statue of the town's founder

Recent Examples on the Web

The sensational international rescue of the famously sentient creatures, replete with colossal cargo planes, huge crates and Shedd staffers working in the dead of night to transport and care for the whales, must have looked made for social media. — Arkansas Online, 28 Sep. 2026

From the tiny unit of matter—the atom, invisible to the eye—comes an explosion of colossal proportions. — Artforum, 28 Sep. 2026

The company also has plans to build a truly colossal chip factory in Texas, called Terafab, that’s expected to cost tens of billions of dollars. — Jackie Wattles, CNN Money, 28 Sep. 2026

Americans across the political spectrum agreed that the bloodshed had been a colossal waste of money and human life. — Beverly Gage, New Yorker, 28 Sep. 2026

Word History

Etymology

see colossus

First Known Use

1664, in the meaning defined at sense 1

Rhymes for colossal

• apostle
• nitrosyl
• docile
• fossil
• jostle
• hypoglossal
• nannofossil

Kids Definition

colossal

adjective

co·​los·​sal kə-ˈläs-əl 

1

: of, relating to, or resembling a colossus

especially : of very great size

a colossal office building

2

: extraordinary, exceptional

colossal growth

a colossal failure

colossally

-ə-lē 

adverb