astronomical (also astronomic), colossal, cosmic, elephantine, enormous, giant, gigantic, herculean, heroic, huge, immense, mammoth, massive, monster, monstrous, monumental, mountainous, prodigious, titanic, tremendous;
big, bulky, bumper, considerable, extensive, good, goodly, grand, great, gross, handsome, hefty, hulking, jumbo, king-size (or king-sized), large, largish, major, outsize (also outsized), overgrown, overscale (or overscaled), oversize (or oversized), sizable (or sizeable), substantial, super, whacking, whopping;
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