| Solution | Length | |
|---|---|---|
| 3 letters | ||
| gas | 3 | |
| 4 letters | ||
| thin | 4 | |
| rare | 4 | |
| 5 letters | ||
| moist | 5 | |
| foggy | 5 | |
| gassy | 5 | |
| humid | 5 | |
| smoky | 5 | |
| windy | 5 | |
| vague | 5 | |
| 6 letters | ||
| fumier | 6 | |
| steamy | 6 | |
| unreal | 6 | |
| subtle | 6 | |
| slight | 6 | |
| 7 letters | ||
| tenuous | 7 | |
| subtile | 7 | |
| smoking | 7 | |
| reeking | 7 | |
| thinned | 7 | |
| 8 letters | ||
| GASIFORM | 8 | |
| rarefied | 8 | |
| steaming | 8 | |
| 10 letters | ||
| spirituous | 10 | |
| 12 letters | ||
| watered down | 12 | |
| 13 letters | ||
| unsubstantial | 13 | |