| Solution | Length | |
|---|---|---|
| 3 letters | ||
| and | 3 | |
| 4 letters | ||
| hard | 4 | |
| 5 letters | ||
| spiny | 5 | |
| stiff | 5 | |
| steep | 5 | |
| rough | 5 | |
| tough | 5 | |
| 6 letters | ||
| tricky | 6 | |
| rugged | 6 | |
| wicked | 6 | |
| thorny | 6 | |
| trying | 6 | |
| uphill | 6 | |
| severe | 6 | |
| tiring | 6 | |
| 7 letters | ||
| diffuse | 7 | |
| washday | 7 | |
| onerous | 7 | |
| painful | 7 | |
| arduous | 7 | |
| 8 letters | ||
| tiresome | 8 | |
| ticklish | 8 | |
| rigorous | 8 | |
| terrible | 8 | |
| strained | 8 | |
| wearying | 8 | |
| 9 letters | ||
| straining | 9 | |
| difficult | 9 | |
| FATIGUING | 9 | |
| strenuous | 9 | |
| wearisome | 9 | |
| laborious | 9 | |
| punishing | 9 | |
| stressful | 9 | |
| 10 letters | ||
| BURDENSOME | 10 | |
| 11 letters | ||
| troublesome | 11 | |