| resolute(adjective, tough, firm, determined, distant) |
| rigid(adjective, hard, determined, resolute, obstinate) |
| uncompromising(adjective, tough, firm, determined, distant) |
| inflexible(adjective, determined, resolute, rigid, obstinate) |
| determined(verb, adjective, hard, firm, resolute) |
| intransigent(adjective, determined, resolute, rigid, obstinate) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| obdurate(adjective, determined, resolute, rigid, obstinate) |
| unbending(adjective, determined, resolute, rigid, obstinate) |
| unyielding(adjective, determined, resolute, rigid, obstinate) |
| fixed(adjective, determined, stiff, resolute, rigid) |
| hard-nosed(adjective, determined, resolute, obstinate, uncompromising) |
| immovable(adjective, hard, determined, resolute, obstinate) |
| inexorable(adjective, tough, firm, determined, distant) |
| relentless(adjective, determined, resolute, rigid, obstinate) |
| set(adjective, determined, resolute, rigid, strict) |
| set in stone(expression, adjective, idiom, tough, firm) |
| standing pat(expression, adjective, tough, firm, determined) |
| stiff(adjective, tough, firm, determined, resolute) |
| unbendable(adjective, determined, resolute, obstinate, uncompromising) |