Synonyms and related words :
Gargantuan, amplitudinous, astronomical, awesome, big, boundless, bulky, bumper, colossal, considerable, cosmic, enormous, extensive, galactic, gigantic, good, goodly, grand, great, healthy, hefty, huge, immeasurable, immense, infinite, king-size, large, large-scale, major, mammoth, man-sized, massive, massy, monster, monstrous, monumental, mountainous, numerous, outsize, overgrown, prodigious, respectable, sensible, smart, spacious, stupendous, substantial, tall, tidy, titanic, tremendous, vast, voluminous, weighty