MASSIVE

adj. big, large, oversized, huge, bulky, enormous, hulking, immense, gigantic, towering, mammoth, colossal, titanic, vast, tremendous, prodigious, mountainous, gargantuan, Brobdingnagian, Cyclopean, elephantine, jumbo, stupendous, mighty, weighty, ponderous, Literary massy, Colloq walloping, whopping, monster, Brit whacking (great), US ginormous, humongous They built a massive wall round the city Massive beams support the roof.