| Solution | Length | |
|---|---|---|
| 3 letters | ||
| gas | 3 | |
| ium | 3 | |
| 4 letters | ||
| odes | 4 | |
| atom | 4 | |
| 5 letters | ||
| prime | 5 | |
| basic | 5 | |
| sylph | 5 | |
| 6 letters | ||
| primal | 6 | |
| undine | 6 | |
| simple | 6 | |
| 7 letters | ||
| seminal | 7 | |
| primary | 7 | |
| radical | 7 | |
| isotope | 7 | |
| 8 letters | ||
| pregnant | 8 | |
| pristine | 8 | |
| primeval | 8 | |
| ultimate | 8 | |
| prenatal | 8 | |
| chemical | 8 | |
| 9 letters | ||
| barebones | 9 | |
| primitive | 9 | |
| 10 letters | ||
| primordial | 10 | |
| UNDERLYING | 10 | |
| salamander | 10 | |
| 11 letters | ||
| fundamental | 11 | |
| SUBSTANTIVE | 11 | |
| SUBSTANTIAL | 11 | |
| rudimentary | 11 | |
| procreative | 11 | |
| 15 letters | ||
| animalinstincts | 15 | |