| spiritless(adjective, characteristic, cruelty, atrocity) |
| stony(adjective, characteristic, cruelty, atrocity) |
| torpid(adjective, characteristic, cruelty, atrocity) |
| tough(adjective, characteristic, cruelty, atrocity) |
| unaffected(adjective, characteristic, cruelty, atrocity) |
| unbendable(adjective, characteristic, obstinacy, stubbornness) |
| uncaring(adjective, characteristic, cruelty, atrocity) |
| uncompromising(adjective, characteristic, obstinacy, stubbornness) |
| unconcerned(adjective, characteristic, cruelty, atrocity) |
| unfeeling(adjective, characteristic, cruelty, atrocity) |
| unrelenting(adjective, characteristic, obstinacy, stubbornness) |
| unresponsive(adjective, characteristic, cruelty, atrocity) |
| unshakable(adjective, characteristic, obstinacy, stubbornness) |
| unswayable(adjective, characteristic, obstinacy, stubbornness) |
| bloodlust |
| torture |
| monster |
| callous(adjective, characteristic, cruelty, atrocity) |
| careless(adjective, characteristic, cruelty, atrocity) |
| case-hardened(adjective, characteristic, cruelty, atrocity) |