mammoth Definition

mammoth
noun

1. Any of various extinct shaggy-haired, prehistoric elephants, some of which had long curved tusks up to 4m long.

adj

1. Huge; giant-sized.

Example: It was a mammoth undertaking
Thesaurus: gigantic, immense, enormous, colossal, formidable, massive, monumental, prodigious, stupendous, leviathan, elephantine, titanic; Antonym: small, diminutive.

Etymology: 19c in adjectival sense; 18c: from Russian mammot or mamont.