Englishgargantuan
adjective
a gargantuan wedding cake:
enormous, extremely big, extremely large, massive, huge, colossal, vast, immense, cosmic, tremendous, gigantic, giant, monstrous, towering, mammoth, prodigious, elephantine, mountainous, mighty, monumental, epic, king-size, king-sized, titanic, Herculean, Brobdingnagian, substantial, hefty, weighty, bulky;
informal whopping, whopping great, thumping, thumping great, humongous, mega, monster, jumbo, hulking, bumper;
British, informal whacking, whacking great, ginormous.
▷antonyms tiny.