| rigidity(noun, state, quality, resist, perseverance) |
| inflexibility(noun, state, quality, resist, perseverance) |
| hardness |
| rigor(noun, obstinacy, stubbornness) |
| rigour |
| stiffness |
| strictness(noun, ruthlessness, pitilessness, mercilessness, relentlessness) |
| stubbornness(noun, state, quality, resist, perseverance) |
| exactness |
| implacability(noun, state, quality, resist, perseverance) |
| incompliance(noun, state, quality, resist, perseverance) |
| incompliancy(noun, state, quality, resist, perseverance) |
| inexorability(noun, state, quality, resist, perseverance) |
| inflexibleness(noun, state, quality, resist, perseverance) |
| intransigence(noun, state, quality, resist, perseverance) |
| obstinacy(noun, perseverance, stubbornness, inflexibility, rigor) |
| relentlessness(noun, state, quality, resist, perseverance) |
| die-hardism(noun, state, quality, resist, perseverance) |
| dignity |
| grimness(noun, state, quality, resist, perseverance) |