| cutthroat(adjective, mean, hard, severe, harsh) |
| dead set(adjective, determined, resolute, uncompromising, unshakeable) |
| dead set on(expression, adjective, idiom, harsh, cruel) |
| demoniac(adjective, harsh, violent, cruel, vicious) |
| destructive(adjective, harsh, violent, cruel, vicious) |
| devilish(adjective, animal, mean, harsh, violent) |
| diabolical(adjective, animal, mean, harsh, violent) |
| endless(adjective, persistent, constant, pitiless, unyielding) |
| ferine(adjective, harsh, violent, cruel, vicious) |
| firm(adjective, determined, resolute, uncompromising, unshakeable) |
| flinty |
| forbidding |
| frantic(adjective, harsh, violent, cruel, vicious) |
| frigid(adjective, mean, hard, harsh, cold) |
| go for broke(expression, adjective, idiom, harsh, cruel) |
| gory |
| graceless |
| griefless |
| hang-tough(adjective, harsh, cruel, determined, fierce) |
| hang in(expression, adjective, harsh, cruel, determined) |