| sobering(adjective, tough, severe, important, significant) |
| strictly business(expression, adjective, tough, severe, important) |
| tough(adjective, severe, difficult, important, significant) |
| ugly(adjective, tough, severe, important, significant) |
| unenjoyable |
| uneventful |
| unhumorous(adjective, tough, severe, important, deep) |
| worrying(adjective, tough, severe, important, significant) |
| annihilative(aper, demoniac) |
| aper(demoniac, annihilative) |
| brutish(aper, demoniac, annihilative) |
| coldblooded(aper, demoniac, annihilative) |
| demoniac(aper, annihilative) |
| destructive(aper, demoniac, annihilative) |
| eradicative(aper, demoniac, annihilative) |
| extirpative(aper, demoniac, annihilative) |
| feller(adjective, tough, deep, resolute, meaningful) |
| ferine(aper, demoniac, annihilative) |
| ferocious(aper, demoniac, annihilative) |
| fierce(aper, demoniac, annihilative) |