| combative(adjective, spirited, aggressive, ambitious, competing) |
| competing(adjective, spirited, aggressive, ambitious, bloodthirsty) |
| dog eat dog(expression, adjective, idiom, ambitious, competing) |
| emulous(adjective, spirited, aggressive, ambitious, competing) |
| frigid(adjective, mean, hard, harsh, cold) |
| hard-nosed(adjective, cruel, brutal, pitiless, callous) |
| hard as nails(expression, adjective, idiom, vicious, pitiless) |
| hatchetjob(adjective, mean, hard, harsh, cold) |
| indifferent(adjective, mean, hard, harsh, cold) |
| insensible(adjective, mean, hard, harsh, cold) |
| malevolent(adjective, mean, harsh, cruel, vicious) |
| opposing(adjective, spirited, aggressive, ambitious, competing) |
| rancorous(adjective, mean, harsh, cruel, vicious) |
| revengeful(adjective, mean, harsh, cruel, vicious) |
| rival(adjective, spirited, aggressive, ambitious, competing) |
| ruthlessly competitive |
| sadistic(adjective, mean, harsh, cruel, vicious) |
| satanic(adjective, mean, hard, harsh, cold) |
| soulless(adjective, mean, hard, harsh, cold) |
| stern(adjective, mean, severe, harsh, cruel) |