endurance Synonyms

fortitude toughness staying power persistence perseverance stamina steadfastness patience grit hardiness survival tenacity tolerance durability robustness determination resilience continuance constancy resolution retention sufferance supportance survivance survivorship resoluteness thole toleration stalwartness sedulity stableness stability springiness self-sufficiency stoicism strength sturdiness subsistence suffering resistibility viability broad-mindedness relentlessness firepower muscle tone abidingness indomitability resistivity ruggedness shelf life