| difficile(adjective, tough, severe, rough, difficult) |
| distressing(adjective, bad, tough, severe, rough) |
| dominant(powerful, prevailing, influential, commanding) |
| effectual(prevailing, influential, commanding) |
| exhausting(adjective, hard, tough, severe, rough) |
| fantastic |
| fatal(adjective, dangerous) |
| fateful(adjective, tough, severe, important, significant) |
| firm(adjective, strong) |
| freaky |
| ghoulish(awful, terrible, dreadful) |
| grievous(adjective, tough, severe, difficult, unpleasant) |
| grinding(adjective, tough, severe, rough, difficult) |
| husky(adjective, strong) |
| intricate(adjective, hard, tough, severe, difficult) |
| lurid(adjective, awful, terrible, shocking, dreadful) |
| macabre(awful, terrible, shocking, dreadful, upsetting) |
| mammoth(adjective, difficult, overwhelming) |
| mettlesome(adjective, strong) |
| morbid(awful, terrible, shocking, dreadful, upsetting) |