| Solution | Length | |
|---|---|---|
| 5 letters | ||
| tepid | 5 | |
| blase | 5 | |
| quiet | 5 | |
| stoic | 5 | |
| slack | 5 | |
| 6 letters | ||
| stodgy | 6 | |
| remote | 6 | |
| casual | 6 | |
| supine | 6 | |
| unkind | 6 | |
| torpid | 6 | |
| stolid | 6 | |
| 7 letters | ||
| unmoved | 7 | |
| 8 letters | ||
| sluggish | 8 | |
| lukewarm | 8 | |
| careless | 8 | |
| reckless | 8 | |
| resigned | 8 | |
| 9 letters | ||
| withdrawn | 9 | |
| UNMINDFUL | 9 | |
| apathetic | 9 | |
| unabashed | 9 | |
| spunkless | 9 | |
| stupefied | 9 | |
| incurious | 9 | |
| soporific | 9 | |
| easygoing | 9 | |
| 10 letters | ||
| spiritless | 10 | |
| UNINVOLVED | 10 | |
| nonchalant | 10 | |
| turned off | 10 | |
| regardless | 10 | |
| 11 letters | ||
| indifferent | 11 | |
| 12 letters | ||
| uninterested | 12 | |
| unsolicitous | 12 | |
| 13 letters | ||
| uninquisitive | 13 | |
| 16 letters | ||
| undiscriminating | 16 | |