| implacability(noun, state, quality, resist, perseverance) |
| inelasticity(noun, protection, security, hardness, inflexibility) |
| obdurateness(noun, state, quality, resist, perseverance) |
| rigorousness(noun, easy, condition, discipline, firmness) |
| solidity(noun, firmness, protection, security, toughness) |
| stubbornness(noun, state, quality, resist, perseverance) |
| tautness(noun, firmness, tension, tightness) |
| tightness(noun, tension, density, impermeability, tightness) |
| formality(firmness, severity, strictness, inflexibility, sternness) |
| intransigency(noun, state, quality, resist, perseverance) |
| obstinacy(noun, perseverance, stubbornness, inflexibility, rigor) |
| prudery |
| relentlessness(noun, state, quality, resist, perseverance) |
| rigour |
| acerbity(noun, discipline, firmness, severity, harshness) |
| cruelty(noun, discipline, firmness, severity, harshness) |
| exactness(severity, harshness, conformity, strictness, sternness) |
| immovability(noun, firmness, obstinacy, stillness, stubbornness) |
| incompliance(noun, state, quality, resist, perseverance) |
| incompliancy(noun, state, quality, resist, perseverance) |