| resilience(noun, quality, tension, flexibility) |
| durability(noun, quality, firmness, hardness, grittiness) |
| firmness(noun, quality, hardness, grittiness) |
| grittiness(noun, quality, firmness, hardness) |
| hardness(noun, quality, firmness, grittiness) |
| rigidity(noun, quality, firmness, hardness, grittiness) |
| solidity(noun, quality, firmness, hardness, grittiness) |
| stability(noun, quality, firmness, hardness, grittiness) |
| strength(noun, quality, firmness, hardness, grittiness) |
| toughness(noun, quality, firmness, hardness, grittiness) |
| elasticity(noun, quality, tension, resilience, flexibility) |
| flexibility(noun, quality, tension, resilience) |
| resiliency(noun, quality, tension, resilience, flexibility) |
| spring(noun, quality, tension, resilience, flexibility) |
| springiness(noun, quality, tension, resilience, flexibility) |
| tension(noun, quality, resilience, flexibility) |