81 entries under firmness topic. ×

5
spunk(noun, drive, power, strength, energy)
4
heart(noun, power, strength, energy, spirit)
4
moxie(noun, activity, go, drive, power)
4
pluck(noun, go, power, strength, energy)
4
steadiness(noun, support, control, strength, balance)
3
cohesion(noun, support, control, strength, balance)
3
solidity(noun, support, control, strength, balance)
3
soundness(noun, support, action, control, go)
3
starch(noun, go, power, strength, energy)
3
sturdiness(noun, support, control, strength, energy)
2
nerve(noun, power, strength, spirit, dash)
2
courageousness(strength, spirit, dash, determination, courage)
2
fearlessness(noun, power, strength, spirit, dash)
2
hardihood(noun, activity, go, drive, power)
2
immobility(noun, support, control, strength, balance)
2
immovability(noun, support, control, strength, temper)
2
intrepidity(noun, power, strength, spirit, dash)
2
resoluteness(noun, support, control, strength, determination)
2
rigidity
2
spirit(noun, go, power, strength, energy)
10 years ago|22k views|share |citing 
APASmart Define. (2016). endurance thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/endurance/thesaurus/synonyms
ChicagoSmart Define. 2016. "endurance thesaurus" https://smartdefine.org/endurance/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, endurance thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/endurance/thesaurus/synonyms>.
MLASmart Define. "endurance thesaurus" 29 March 2016. Web. 28 September 2026. <https://smartdefine.org/endurance/thesaurus/synonyms>