GARGANTUAN
elephantine, gargantuan, giant, jumbo
(adjective) of great mass; huge and bulky; “a jumbo jet”; “jumbo shrimp”
Source: WordNet® 3.1
Etymology
Adjective
gargantuan (comparative more gargantuan, superlative most gargantuan)
(obsolete) Of the giant Gargantua or his appetite.
Huge; immense; tremendous.
Synonyms: colossal, enormous, giant, huge, humongous, immense, Thesaurus:gigantic
Source: Wiktionary
Gar*gan"tu*an, a. Etym: [From Gargantua, an allegorical hero of
Rabelais.]
Definition: Characteristic of Gargantua, a gigantic, wonderful personage;
enormous; prodigious; inordinate.
Source: Webster’s Unabridged Dictionary 1913 Edition