| No. | Item | Definition |
|---|---|---|
| 1. | ability to endure | power to withstand hardship |
| 2. | ability to persist | power to keep trying |
| 3. | aerobic capacity | ability for sustained exercise |
| 4. | application | steady effort to a task |
| 5. | assiduity | constant careful effort |
| 6. | backbone | inner strength and resolve |
| 7. | bearing power | capacity to carry strain |
| 8. | bounce-back ability | capacity to recover quickly |
| 9. | capacity to last | ability to continue long |
| 10. | commitment | dedication to continue |
| 11. | conditioning | physical fitness for exertion |
| 12. | consistency | unchanging steadiness over time |
| 13. | continuance | state of continuing |
| 14. | continuing strength | strength that lasts |
| 15. | continuity | unbroken continuation |
| 16. | coping ability | ability to manage difficulty |
| 17. | dedication | serious ongoing commitment |
| 18. | dependability | quality of being reliable |
| 19. | determination | firm intention to continue |
| 20. | devotion | steadfast commitment |
| 21. | diligence | careful persistent work |
| 22. | doggedness | stubborn persistence |
| 23. | drive | strong inner motivation |
| 24. | durability | ability to withstand wear |
| 25. | durable strength | strength that endures |
| 26. | durableness | lasting quality under use |
| 27. | exercise tolerance | ability to sustain exertion |
| 28. | fatigue resistance | ability to resist tiredness |
| 29. | fight | willingness to keep resisting |
| 30. | firmness | steadiness and resolve |
| 31. | fitness | physical ability and stamina |
| 32. | forbearance | patient self-control under strain |
| 33. | fortitude | mental and emotional strength |
| 34. | gameness | willingness to keep trying |
| 35. | grit | courage and resolve |
| 36. | gritiness | tough determined quality |
| 37. | hard-wearing quality | lasting under heavy use |
| 38. | hardihood | bold toughness |
| 39. | hardiness | ability to survive harsh conditions |
| 40. | heart | courage and determination |
| 41. | holding power | ability to keep holding |
| 42. | imperishability | quality of not perishing |
| 43. | indefatigability | tireless persistence |
| 44. | industry | habitual hard work |
| 45. | inner strength | personal emotional strength |
| 46. | intestinal fortitude | courage under stress |
| 47. | lasting power | ability to remain effective |
| 48. | lasting strength | strength over time |
| 49. | lastingness | quality of lasting long |
| 50. | long-suffering | patient endurance of hardship |
| 51. | longevity | long duration of life |
| 52. | mental stamina | psychological staying power |
| 53. | mental toughness | psychological resilience under stress |
| 54. | mettle | spirit in facing difficulty |
| 55. | moral strength | ethical and emotional firmness |
| 56. | nerve | courage under pressure |
| 57. | pain tolerance | ability to bear pain |
| 58. | patience | calm ability to wait |
| 59. | perdurability | ability to last long |
| 60. | perseverance | steady effort over time |
| 61. | persistence | continued effort despite difficulty |
| 62. | physical stamina | bodily staying power |
| 63. | pluck | spirited courage |
| 64. | purposefulness | determined sense of purpose |
| 65. | reliability | dependable lasting performance |
| 66. | resilience | capacity to recover and continue |
| 67. | resiliency | ability to bounce back |
| 68. | resistance | ability to withstand force |
| 69. | resisting power | ability to withstand pressure |
| 70. | resisting strength | strength against pressure |
| 71. | resoluteness | firm determination |
| 72. | resolve | decided firmness of purpose |
| 73. | robustness | strong and healthy durability |
| 74. | ruggedness | tough durable quality |
| 75. | sedulity | diligent persistence |
| 76. | single-mindedness | focused determination |
| 77. | solidity | firm dependable strength |
| 78. | soundness | overall strength and reliability |
| 79. | stability | ability to remain steady |
| 80. | stamina | ability to keep going |
| 81. | staying ability | power to keep lasting |
| 82. | staying power | ability to last |
| 83. | staying strength | lasting strength |
| 84. | steadfastness | firmness and loyalty |
| 85. | stick-to-itiveness | persistent determination |
| 86. | stout-heartedness | brave steadfast spirit |
| 87. | stoutness | physical or moral sturdiness |
| 88. | strength | power to withstand strain |
| 89. | sturdiness | solid strength and stability |
| 90. | survival | continued existence despite danger |
| 91. | sustained effort | continued hard work |
| 92. | tenacity | determined holding on |
| 93. | tolerance | capacity to bear something |
| 94. | toughness | strength under hardship |
| 95. | unflaggingness | quality of not weakening |
| 96. | untiringness | quality of not tiring |
| 97. | wear resistance | ability to resist wear |
| 98. | wearability | ability to stand repeated use |
| 99. | willpower | control over one’s actions |
| 100. | work capacity | ability to keep working |
