| Solution | Length | |
|---|---|---|
| 4 letters | ||
| sour | 4 | |
| tart | 4 | |
| sore | 4 | |
| 5 letters | ||
| aceto | 5 | |
| acerb | 5 | |
| sharp | 5 | |
| lowph | 5 | |
| 7 letters | ||
| rankled | 7 | |
| 8 letters | ||
| stinging | 8 | |
| virulent | 8 | |
| stabbing | 8 | |
| scathing | 8 | |
| 9 letters | ||
| scorching | 9 | |
| splenetic | 9 | |
| trenchant | 9 | |
| sarcastic | 9 | |
| rancorous | 9 | |
| withering | 9 | |
| resentful | 9 | |