| heavy(adjective, hard, tough, severe, rough) |
| incomprehensible |
| nodose |
| ornate(adjective, fancy, exact, complex, involved) |
| snarly |
| subtle(adjective, hard, complex, tricky, complicated) |
| wearing(adjective, tough, rough, difficult, heavy) |
| Daedalean(adjective, hard, fancy, obscure, difficult) |
| arcane(adjective, evil, deep, mysterious, hidden) |
| bad(adjective, evil, mysterious, threatening, nefarious) |
| bothersome(adjective, tough, rough, difficult, heavy) |
| bumpy(adjective, harsh, coarse, irregular, uneven) |
| compact |
| confounding(adjective, hard, tricky, complicated, puzzling) |
| cramp |
| cryptic(adjective, evil, obscure, difficult, sophisticated) |
| cumbersome(adjective, difficult) |
| deep(adjective, hard, evil, delicate, loose) |
| devious |
| difficile(adjective, tough, rough, difficult, heavy) |