- Definitions|2
- Thesaurus|1k
- Abbreviations|0
116 entries under firmness topic. ×
| strength(noun, support, control, go, force) | |
| tenacity(noun, health, state, force, quality) | |
| stamina(noun, health, force, power, strength) | |
| sturdiness(noun, health, support, control, force) | |
| hardiness(noun, health, force, body, hard) | |
| permanence(noun, support, control, strength, balance) | |
| hardness(noun, support, control, power, strength) | |
| harshness(noun, force, power, easy, difficulty) | |
| severity(noun, power, easy, difficulty, condition) | |
| backbone(noun, health, support, control, force) | |
| grit(noun, strength, spirit, determination, resolution) | |
| rigidity(noun, easy, condition, discipline) | |
| solidity(noun, support, control, strength, balance) | |
| stoutness(noun, health, force, body, power) | |
| durability(noun, health, support, control, force) | |
| energy(noun, health, force, body, power) | |
| stiffness(noun, difficulty, protection, security) | |
| fortitude(noun, health, force, body, power) | |
| determination(noun, support, control, strong, strength) | |
| endurance(noun, support, control, go, power) |
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| APA | Smart Define. (2015). toughness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/toughness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "toughness thesaurus" https://smartdefine.org/toughness/thesaurus/synonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, toughness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/toughness/thesaurus/synonyms>. |
| MLA | Smart Define. "toughness thesaurus" 21 December 2015. Web. 28 September 2026. <https://smartdefine.org/toughness/thesaurus/synonyms> |