| Solution | Length | |
|---|---|---|
| 4 letters | ||
| sour | 4 | |
| sore | 4 | |
| tart | 4 | |
| 5 letters | ||
| acerb | 5 | |
| sharp | 5 | |
| rough | 5 | |
| 6 letters | ||
| severe | 6 | |
| 7 letters | ||
| violent | 7 | |
| sourish | 7 | |
| rankled | 7 | |
| 8 letters | ||
| virulent | 8 | |
| vehement | 8 | |
| strident | 8 | |
| stinging | 8 | |
| stabbing | 8 | |
| rigorous | 8 | |
| scathing | 8 | |
| 9 letters | ||
| trenchant | 9 | |
| scorching | 9 | |
| sarcastic | 9 | |
| stringent | 9 | |
| withering | 9 | |
| splenetic | 9 | |
| vitriolic | 9 | |
| resentful | 9 | |
| rancorous | 9 | |
| 14 letters | ||
| short-tempered | 14 | |