4
everlastingness(noun, durability, permanence, perpetuity)
4
hardiness(noun, activity, action, go, drive)
4
heart(noun, power, strength, energy, spirit)
4
integrity(noun, honor, constant, perseverance, reliability)
4
intestinal fortitude(noun, expression, power, strength, energy)
4
life(noun, activity, person, go, drive)
4
moxie(noun, activity, go, drive, power)
4
pluck(noun, go, power, strength, energy)
4
resignation(noun, power, strength, restraint, resolution)
4
robustness(noun, power, strength, energy, spirit)
4
ruggedness(noun, toughness)
4
run(noun, course, track, period, extension)
4
sedulousness
4
steadiness(noun, support, control, strength, balance)
4
submission(noun, power, strength, restraint, resolution)
4
suffering(noun, feeling, power, strength, resolution)
4
viability(noun, person, body, being, soul)
3
vigour
3
ability(noun, activity, action, go, drive)
3
animation(noun, activity, person, go, body)
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APASmart Define. (2016). endurance thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/endurance/thesaurus/synonyms
ChicagoSmart Define. 2016. "endurance thesaurus" https://smartdefine.org/endurance/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, endurance thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/endurance/thesaurus/synonyms>.
MLASmart Define. "endurance thesaurus" 29 March 2016. Web. 25 September 2026. <https://smartdefine.org/endurance/thesaurus/synonyms>