81 entries under firmness topic. ×
| perseverance(noun, support, control, power, honor) | |
| permanence(noun, support, control, honor, strength) | |
| stamina(noun, go, quality, power, strength) | |
| patience(noun, understanding, power, empathy, pleasure) | |
| strength(noun, support, control, go, power) | |
| durability(noun, support, control, time, strength) | |
| tenacity(noun, power, honor, strength, spirit) | |
| staying power(noun, expression, idiom, quality, power) | |
| resistance(noun, power, strength, energy, challenge) | |
| resolution(noun, power, honor, strength, spirit) | |
| stability(noun, support, control, honor, strength) | |
| grit(noun, power, strength, energy, spirit) | |
| constancy(noun, support, control, strength, resolve) | |
| mettle(noun, power, strength, spirit, dash) | |
| steadfastness(noun, support, control, strength, spirit) | |
| backbone(noun, support, control, power, strength) | |
| bravery(noun, power, strength, spirit, dash) | |
| determination(noun, support, control, power, honor) | |
| toughness(noun, support, control, go, power) | |
| gutsiness(noun, power, strength, energy, dash) |
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| APA | Smart Define. (2016). endurance thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/endurance/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "endurance thesaurus" https://smartdefine.org/endurance/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, endurance thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/endurance/thesaurus/synonyms>. |
| MLA | Smart Define. "endurance thesaurus" 29 March 2016. Web. 27 September 2026. <https://smartdefine.org/endurance/thesaurus/synonyms> |