| Solution | Length | |
|---|---|---|
| 4 letters | ||
| rely | 4 | |
| mean | 4 | |
| cold | 4 | |
| 5 letters | ||
| cruel | 5 | |
| stoic | 5 | |
| stony | 5 | |
| slack | 5 | |
| 6 letters | ||
| editor | 6 | |
| tinman | 6 | |
| unkind | 6 | |
| seared | 6 | |
| sheila | 6 | |
| supine | 6 | |
| torpid | 6 | |
| savage | 6 | |
| 7 letters | ||
| anthony | 7 | |
| callous | 7 | |
| inhuman | 7 | |
| subdued | 7 | |
| 8 letters | ||
| teacaddy | 8 | |
| UNLOVING | 8 | |
| ruthless | 8 | |
| resigned | 8 | |
| sluggish | 8 | |
| SOULLESS | 8 | |
| suicidal | 8 | |
| 9 letters | ||
| unnatural | 9 | |
| shameless | 9 | |
| unfeeling | 9 | |
| ungallant | 9 | |
| stupefied | 9 | |
| soporific | 9 | |
| withdrawn | 9 | |
| spunkless | 9 | |
| woebegone | 9 | |
| 10 letters | ||
| relentless | 10 | |
| SANGUINARY | 10 | |
| spiritless | 10 | |
| simonegree | 10 | |
| unmerciful | 10 | |
| UNYIELDING | 10 | |
| 11 letters | ||
| unemotional | 11 | |
| world-weary | 11 | |
| COLDBLOODED | 11 | |
| UNTOUCHABLE | 11 | |
| UNCONCERNED | 11 | |
| UNFORGIVING | 11 | |
| remorseless | 11 | |
| 12 letters | ||
| UNREMORSEFUL | 12 | |
| unresponsive | 12 | |
| uninterested | 12 | |
| 13 letters | ||
| unimpassioned | 13 | |
| georgieporgie | 13 | |
| unsusceptible | 13 | |
| unsympathetic | 13 | |
| 14 letters | ||
| unaffectionate | 14 | |
| 15 letters | ||
| uncompassionate | 15 | |