Synonyms and related words :
Gargantuan, amplitudinous, astronomical, awesome, boundless, bulky, colossal, cosmic, enormous, extensive, galactic, giantism, gigantic, gigantism, huge, hypertrophy, immeasurable, immense, infinite, king-size, large, mammoth, massive, massy, monster, monstrous, monumental, mountainous, outsized, overbig, overdeveloped, overdevelopment, overfed, overgrown, overgrowth, overlarge, overlargeness, oversized, overweight, prodigious, sizable, spacious, stupendous, titanic, too big, tremendous, vast, voluminous, weighty