| resolute(adjective, tough, firm, determined, distant) |
| uncompromising(adjective, tough, firm, determined, distant) |
| rigid(adjective, determined, resolute, obstinate, uncompromising) |
| stubborn(adjective, determined, resolute, obstinate, uncompromising) |
| determined(adjective, resolute, obstinate, uncompromising, unshakeable) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| intransigent(adjective, determined, resolute, obstinate, uncompromising) |
| hard-nosed(adjective, determined, resolute, obstinate, uncompromising) |
| inexorable(adjective, tough, firm, determined, distant) |
| inflexible(adjective, determined, resolute, obstinate, uncompromising) |
| obdurate(adjective, determined, resolute, obstinate, uncompromising) |
| set in stone(expression, adjective, idiom, tough, firm) |
| unbendable(adjective, determined, resolute, obstinate, uncompromising) |
| unswayable(adjective, tough, firm, determined, distant) |
| firm(adjective, determined, resolute, obstinate, uncompromising) |
| fixed(adjective, determined, resolute, obstinate, uncompromising) |
| immovable(adjective, determined, resolute, obstinate, uncompromising) |
| relentless(adjective, determined, resolute, obstinate, uncompromising) |
| set(adjective, determined, resolute, obstinate, uncompromising) |
| stiff(adjective, determined, resolute, obstinate, uncompromising) |