| big(adjective, great, large, huge, vast) |
| extensive(adjective, large, huge, vast, immense) |
| cyclopean(adjective, big, giant) |
| humongous(adjective, great, big, large, size) |
| monster(noun, adjective, person, big, being) |
| whopping(adjective, slang, big, enormous) |
| leviathan(noun, adjective, person, big, size) |
| bulky(adjective, large, huge) |
| mighty(adjective, great, difficult, big, size) |
| mountainous(adjective, big, large, huge, hilly) |
| behemoth(noun, adjective, person, big, size) |
| towering(adjective, large, huge, vast, immense) |
| spacious(adjective, large) |
| voluminous(adjective, large) |
| walloping(adjective, informal, big) |
| capacious(adjective, large) |
| ample(adjective, large) |
| immeasurable(adjective, huge, vast, immense, copious) |
| colossus(noun, size, giant) |
| epic |