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