| serious(adjective, weighty, aper, demoniac, crucial) |
| absolute(adjective, complete, limit, total, utter) |
| complete(adjective, simple, total, pure, utter) |
| deep(adjective, tough, severe, difficult, important) |
| entire(adjective, complete, simple, total, pure) |
| far-reaching(adjective, tough, severe, important, significant) |
| fateful(adjective, tough, severe, important, significant) |
| fell(severe, weighty, aper, demoniac, crucial) |
| formidable(adjective, tough, severe, important, significant) |
| full(adjective, complete, simple, total, pure) |
| grave(adjective, tough, severe, deep, meaningful) |
| gravity |
| hard(adjective, tough, severe, important, significant) |
| laborious(adjective, tough, severe, important, significant) |
| meaning business(expression, adjective, tough, severe, important) |
| meaningful(adjective, tough, severe, important, significant) |
| no catch(expression, adjective, complete, simple, total) |
| no fine print(expression, adjective, idiom, complete, simple) |
| no holds barred(expression, adjective, idiom, complete, simple) |
| no ifs ands or buts(expression, adjective, idiom, complete, simple) |