| go for broke(expression, adjective, idiom, harsh, cruel) |
| grim(adjective, strong, hard, tough, harsh) |
| hang in(expression, adjective, harsh, cruel, determined) |
| hard(adjective, strong, tough, severe, harsh) |
| hard-boiled(adjective, strong, hard, tough, severe) |
| hard-core(adjective, strong, hard, tough, severe) |
| hard-line(adjective, strong, hard, tough, severe) |
| hard-nosed(adjective, strong, hard, tough, severe) |
| hard-shell(adjective, strong, hard, tough, severe) |
| hardheaded(adjective, strong, hard, tough, severe) |
| harsh(adjective, strong, hard, tough, severe) |
| implacable(adjective, strong, hard, tough, harsh) |
| inexorable(adjective, strong, hard, tough, harsh) |
| inflexible(adjective, strong, hard, tough, harsh) |
| inhuman(adjective, harsh, cruel, determined, fierce) |
| merciless(adjective, harsh, cruel, determined, fierce) |
| mortal(adjective, harsh, cruel, determined, fierce) |
| mortified(adjective, strong, hard, tough, severe) |
| mulish(adjective, strong, hard, tough, severe) |
| obdurate(adjective, strong, hard, tough, harsh) |