| No. | Item | Definition |
|---|---|---|
| 1. | acceptable | good enough to allow |
| 2. | airtight | completely secure or convincing |
| 3. | all right | acceptable or satisfactory |
| 4. | anchored | firmly secured in place |
| 5. | authentic | real and trustworthy |
| 6. | blocky | shaped like a solid block |
| 7. | bona fide | genuine and real |
| 8. | bulletproof | highly secure or convincing |
| 9. | burly | large and strongly built |
| 10. | cast-iron | extremely strong or certain |
| 11. | chunky | thick and heavy |
| 12. | cogent | clear, logical, and convincing |
| 13. | coherent | logical and consistent |
| 14. | compact | closely packed together |
| 15. | concrete | specific and definite |
| 16. | consistent | not contradictory; steady throughout |
| 17. | consolidated | made stronger by combining |
| 18. | decent | fairly good and acceptable |
| 19. | dense | closely compacted or thick |
| 20. | dependable | able to be relied on |
| 21. | durable | able to last a long time |
| 22. | established | firmly recognized or accepted |
| 23. | fine | good or satisfactory quality |
| 24. | firm | hard or not easily moved |
| 25. | fixed | firmly placed and stable |
| 26. | fleshed-out | fully developed and detailed |
| 27. | fortified | strengthened against attack or weakness |
| 28. | full-bodied | rich, strong, and substantial |
| 29. | genuine | truly what it claims |
| 30. | good | of high enough quality |
| 31. | hard | not soft or yielding |
| 32. | hardened | made hard or tougher |
| 33. | hardy | strong and able to survive |
| 34. | heavy-duty | made for hard use |
| 35. | hefty | large, heavy, and strong |
| 36. | hulking | very large and heavy |
| 37. | impenetrable | impossible to pass through |
| 38. | impregnable | unable to be captured or broken |
| 39. | indestructible | unable to be destroyed |
| 40. | inflexible | not easily bent or changed |
| 41. | intact | whole and undamaged |
| 42. | ironclad | extremely secure or certain |
| 43. | knit | closely joined or connected |
| 44. | legit | real or genuine |
| 45. | legitimate | lawful, valid, or genuine |
| 46. | load-bearing | strong enough to support weight |
| 47. | locked-in | firmly fixed or secured |
| 48. | massive | large, heavy, and strong |
| 49. | material | physical and tangible |
| 50. | meaty | substantial and full of content |
| 51. | mighty | very strong or powerful |
| 52. | monolithic | large, uniform, and solid |
| 53. | oaken | strong and sturdy like oak |
| 54. | okay | acceptable or satisfactory |
| 55. | opaque | not transparent; dense-looking |
| 56. | outsize | unusually large and substantial |
| 57. | overbuilt | built stronger than necessary |
| 58. | oversize | larger and more substantial |
| 59. | packed | filled tightly together |
| 60. | passable | good enough though not excellent |
| 61. | powerful | having great strength or force |
| 62. | reinforced | strengthened with extra support |
| 63. | reliable | consistently good and trustworthy |
| 64. | resilient | able to recover or resist damage |
| 65. | rigid | stiff and not flexible |
| 66. | robust | strong and healthy or durable |
| 67. | rock-hard | extremely hard |
| 68. | rooted | firmly established or fixed |
| 69. | rugged | strong and able to withstand |
| 70. | secure | safe, fixed, or protected |
| 71. | serviceable | usable and in good condition |
| 72. | sound | reliable and in good condition |
| 73. | stable | steady and not likely to change |
| 74. | steady | firm and not shaking |
| 75. | stiff | firm and hard to bend |
| 76. | strong | powerful and not weak |
| 77. | sturdy | strongly built and durable |
| 78. | substantial | large, strong, or well made |
| 79. | tangible | real and able to be touched |
| 80. | taut | pulled tight and firm |
| 81. | tautly built | firmly and tightly made |
| 82. | tempered | strengthened by treatment |
| 83. | tenacious | holding firmly; persistent |
| 84. | thickset | having a strong heavy build |
| 85. | tight | firmly fixed or packed |
| 86. | tough | strong and able to resist damage |
| 87. | unbreakable | not able to be broken |
| 88. | unbroken | not interrupted or damaged |
| 89. | unwavering | not changing or weakening |
| 90. | unyielding | not giving way under pressure |
| 91. | usable | fit for practical use |
| 92. | valid | logically sound or acceptable |
| 93. | watertight | secure against flaws or leaks |
| 94. | well-argued | supported by strong reasoning |
| 95. | well-built | strongly and solidly made |
| 96. | well-developed | fully formed and detailed |
| 97. | well-grounded | based on good knowledge |
| 98. | well-made | carefully and strongly constructed |
| 99. | well-reasoned | carefully thought out and logical |
| 100. | well-supported | backed by strong evidence |
