| irreverent(adjective, hard, unfeeling, unsympathetic, hardened) |
| murderous(adjective, hard, tough, harsh, cruel) |
| obtuse(adjective, hard, unfeeling, unsympathetic, hardened) |
| packed(adjective, hard) |
| pitiless(adjective, hard, tough, harsh, cruel) |
| prepared(adjective, hard, unfeeling, unsympathetic, hardened) |
| remorseless |
| resistant(adjective, strong, hard, stiff, unfeeling) |
| rigorous(adjective, hard, tough, harsh, cruel) |
| rough |
| sanguinary(adjective, hard, tough, harsh, cruel) |
| seasoned(adjective, strong, hard, stiff, unfeeling) |
| set(adjective, hard) |
| shameless(adjective, hard, tough, harsh, cruel) |
| soulless(adjective, hard, careless, indifferent, cruel) |
| sour(adjective, hard, tough, harsh, cruel) |
| spiritless(adjective, hard, careless, indifferent, cruel) |
| steeled(adjective, strong, hard, stiff, unfeeling) |
| stony(adjective, hard, careless, indifferent, cruel) |
| thick-skinned(adjective, hard, careless, indifferent, cruel) |