| stale(adjective, hard, difficult, rank, complex) |
| evil(adjective, mean, bad, hard, wrong) |
| noxious(adjective, health, mean, bad, evil) |
| appalling(adjective, evil, taste, unpleasant, base) |
| precarious(adjective, hard, difficult, complex, dangerous) |
| complicated(adjective, hard, evil, difficult, complex) |
| fusty(adjective, hard, difficult, rank, complex) |
| intricate(adjective, hard, evil, difficult, complex) |
| knotty(adjective, hard, evil, difficult, complex) |
| nauseous(adjective, taste, pain, unpleasant, awful) |
| complex(adjective, hard, difficult) |
| despicable(adjective, good, mean, hard, evil) |
| disturbing(adjective, hard, severe, difficult, complex) |
| hard-nosed(adjective, hard, severe, rough, difficult) |
| indecent(adjective, bad, wrong, blue, evil) |
| involved(adjective, hard, difficult, complex) |
| problematic(adjective, hard, difficult, complex) |
| rugged(adjective, hard, severe, rough, difficult) |
| sensitive(adjective, hard, difficult, complex) |
| sordid(adjective, mean, bad, taste, rough) |