| inflexible(adjective, tough, moderate, resist, determined) |
| intransigent(adjective, resist, determined, resolute, persistent) |
| conservative(adjective, sound, right, moderate, cautious) |
| inexorable(adjective, resist, determined, resolute, persistent) |
| rigid(adjective, resist, determined, resolute, persistent) |
| obdurate(adjective, resist, determined, resolute, persistent) |
| orthodox(adjective, moderate, honest, cautious, conventional) |
| reactionary(noun, adjective, sound, right, moderate) |
| ultraconservative(noun, adjective, uncompromising, politics, reactionary) |
| unbending(adjective, resist, determined, resolute, persistent) |
| uncompromising(adjective, resist, determined, resolute, persistent) |
| unrelenting(adjective, resist, determined, resolute, persistent) |
| unyielding(adjective, resist, determined, resolute, persistent) |
| adamantine(adjective, resist, determined, resolute, persistent) |
| firm(adjective, moderate, honest, determined, resolute) |
| incompliant(adjective, resist, determined, resolute, persistent) |
| uncompliant(adjective, resist, determined, resolute, persistent) |
| brassbound(adjective, resist, determined, resolute, persistent) |
| implacable(adjective, resist, determined, resolute, persistent) |
| iron(adjective, resist, determined, resolute, persistent) |