I. noun
something of monstrous size, appearance, or power
a giant of a tractor
Synonyms: behemoth, leviathan, mammoth, monster, whale
Related Word: cyclops, polypheme
II. adjective
Synonyms: huge , behemothic, Brobdingnagian, colossal, cyclopean, gargantuan, gigantic, Herculean, mammoth, titanic
Related Word: gross, hulking
Contrasted words: paltry, petty, puny, trifling, trivial
Antonyms: dwarf