| stubborn(adjective, characteristic, quality, firm, resist) |
| rigid(adjective, firm, resist, determined, unreasonable) |
| uncompromising(adjective, resist, determined, resolute, persistent) |
| inflexible(adjective, firm, resist, determined, unreasonable) |
| resolute(adjective, determined, obstinate, uncompromising, unshakeable) |
| firm(adjective, determined, unreasonable, resolute, rigid) |
| obdurate(adjective, resist, determined, resolute, persistent) |
| intransigent(adjective, resist, determined, resolute, persistent) |
| unbending(adjective, tough, firm, resist, determined) |
| unyielding(adjective, firm, resist, determined, unreasonable) |
| determined(adjective, resolute, obstinate, uncompromising, unshakeable) |
| stiff(adjective, firm, determined, resolute, rigid) |
| inexorable(adjective, resist, determined, resolute, persistent) |
| unrelenting(adjective, resist, determined, resolute, persistent) |
| relentless(adjective, resist, determined, resolute, persistent) |
| unshakable(adjective, determined, resolute, obstinate, uncompromising) |
| hard-nosed(adjective, determined, resolute, obstinate, uncompromising) |
| steadfast(adjective, determined, resolute, obstinate, uncompromising) |
| insistent(adjective, determined, resolute, obstinate, uncompromising) |
| unwavering(adjective, determined, resolute, obstinate, uncompromising) |