| hang-tough(adjective, harsh, cruel, determined, fierce) |
| hang in(expression, adjective, harsh, cruel, determined) |
| hard-bitten(adjective, hard, tough, severe, rough) |
| hardheaded(adjective, determined, resolute, uncompromising, unshakeable) |
| hatchet job(expression, adjective, mean, severe, harsh) |
| having a killer instinct(expression, adjective, idiom, mean, severe) |
| headstrong(adjective, determined, resolute, uncompromising, unshakeable) |
| illiberal |
| impenitent(adjective, hard, tough, harsh, cruel) |
| inclement |
| inconvincible(adjective, determined, resolute, uncompromising, unshakeable) |
| indifferent(adjective, hard, unfeeling, heartless, merciless) |
| intolerant(adjective, hard, tough, harsh, cruel) |
| iron-fisted(adjective, mean, severe, harsh, cruel) |
| ironfisted(adjective, mean, harsh, cruel, vicious) |
| macabre |
| mean machine(expression, adjective, mean, severe, harsh) |
| mordant |
| mulish(adjective, determined, resolute, uncompromising, unshakeable) |
| nasty |