| portentous(adjective, importance, main, extremely significant) |
| prominent(adjective, important) |
| purposeful(adjective, importance, main, expressive, telling) |
| solemn(adjective, importance, main, extremely significant) |
| bulky(adjective, strong, great, big, heavy) |
| comprehensive(great, big, substantial, large, grand) |
| deep(adjective, important, significant, vital, greatness) |
| effective(adjective, important, powerful) |
| enormous(adjective, strong, great, big, powerful) |
| heavyweight(adjective, big, heavy, important, significant) |
| immense(adjective, strong, great, big, powerful) |
| large-scale(adjective, big, significant, substantial, large) |
| mighty(adjective, size, gigantic, monumental) |
| venerable(adjective, significant, substantial, large, esteemed) |
| biggish(adjective, comfort, rich, well, convenient) |
| earthshaking(adjective, important) |
| eminent(adjective, important) |
| estimable(significant, substantial) |
| full(adjective, great, big, substantial, grand) |
| galore |