astronomical

unusually large a googol is an astronomical number, and the whimsical coinage of the name was intended to suggest that fact Synonyms huge (also astronomic), Brobdingnagian, bumper, colossal, cosmic (also cosmical), cyclopean, elephantine, enormous, galactic, gargantuan, giant, gigantesque, gigantic, grand, herculean, heroic (also heroical), Himalayan, humongous (also humungous), immense, jumbo, king-size (or king-sized), leviathan, mammoth, massive, mega, mighty, monster, monstrous, monumental, mountainous, oceanic, pharaonic, planetary, prodigious, super, super-duper, supersize, supersized, titanic, tremendous, vast, vasty, walloping, whacking, whoppingRelated Words big, bulky, considerable, extensive, good, goodly, great, gross, handsome, hefty, hulking, largish, major, outsize (also outsized), overgrown, oversize (or oversized), sizable (or sizeable), substantial, tidy, voluminous; august, formidable, grandiose, imposing, lofty, majestic; cavernous, monolithic, overwhelming, staggering, stupendous, towering; boundless, immeasurable, infiniteNear Antonyms little, mini, petite, pint-size (or pint-sized), puny, small, smallish, undersized (also undersize); dinky, dwarfish, half-pintAntonyms bantam, bitty, diminutive, infinitesimal, Lilliputian, little bitty, micro, microminiature, microscopic (also microscopical), midget, miniature, minuscule, minute, pocket, pygmy, teensy, teensy-weensy, teeny, teeny-weeny, tiny, wee