Synonyms and related words :
Atlantean, Brobdingnagian, Cyclopean, Herculean, Homeric, abysmal, amplitudinous, astronomic, astronomical, awesome, boundless, bulky, colossal, cosmic, elephantine, enormous, epic, extensive, galactic, giant, giantlike, gigantic, heroic, huge, immeasurable, immense, infinite, jumbo, king-size, large, mammoth, massive, massy, mighty, monster, monstrous, monumental, mountainous, outsize, overgrown, prodigious, profound, sizable, spacious, stupendous, titanic, towering, tremendous, vast, voluminous, weighty