| No. | Item | Definition |
|---|---|---|
| 1. | abstruse | hard to understand |
| 2. | arcane | known by few people |
| 3. | baffling | hard to understand |
| 4. | bewildering | very confusing |
| 5. | blocky | thick and square-shaped |
| 6. | bulky | large and thick |
| 7. | bushy | thick with branches or hair |
| 8. | byzantine | overly complex |
| 9. | close | having little space between |
| 10. | cloudy | not clear or transparent |
| 11. | clustered | grouped tightly together |
| 12. | compact | closely packed together |
| 13. | compressed | pressed into less space |
| 14. | concentrated | strongly packed or intense |
| 15. | confusing | hard to follow |
| 16. | congested | overfilled and crowded |
| 17. | convoluted | complex and hard to follow |
| 18. | crammed | filled to capacity |
| 19. | crowded | filled closely together |
| 20. | cryptic | mysterious and hard to understand |
| 21. | daft | silly or foolish |
| 22. | deep | hard to understand fully |
| 23. | dim | not mentally sharp |
| 24. | dopey | foolish or slow-witted |
| 25. | dopy | stupid or slow-thinking |
| 26. | dull | slow to understand |
| 27. | elaborate | detailed and complicated |
| 28. | enigmatic | difficult to interpret |
| 29. | esoteric | understood by few |
| 30. | fat | thick or large around |
| 31. | filled | made full |
| 32. | fleshy | thick with flesh |
| 33. | foggy | filled with mist |
| 34. | full | containing a lot |
| 35. | gelatinous | thick and jellylike |
| 36. | gluey | sticky and thick |
| 37. | gooey | soft, thick, and sticky |
| 38. | gormless | stupid and lacking sense |
| 39. | gummy | thick and sticky |
| 40. | hazy | unclear or clouded |
| 41. | heavy | thick or hard to move through |
| 42. | hefty | large and heavy |
| 43. | idiotic | very stupid |
| 44. | impenetrable | hard to pass through |
| 45. | intricate | very detailed and complex |
| 46. | involved | complicated and not simple |
| 47. | jammed | packed too tightly |
| 48. | knotty | difficult to understand |
| 49. | labyrinthine | extremely complicated |
| 50. | leaden | heavy and dull |
| 51. | leafy | full of leaves |
| 52. | lush | thick and abundant |
| 53. | luxuriant | growing thickly and richly |
| 54. | massed | gathered closely together |
| 55. | massive | very large and solid |
| 56. | meaty | substantial and information-rich |
| 57. | misty | slightly foggy or unclear |
| 58. | muddled | confused and unclear |
| 59. | muddy | thick and dirty |
| 60. | murky | dark and hard to see through |
| 61. | obscure | hard to understand |
| 62. | obtuse | slow to understand |
| 63. | opaque | not letting light through |
| 64. | overgrown | covered with thick growth |
| 65. | packed | filled tightly together |
| 66. | padded | made thicker with filling |
| 67. | perplexing | causing confusion |
| 68. | ponderous | heavy and hard to follow |
| 69. | portly | somewhat fat and dignified |
| 70. | profound | deep in meaning |
| 71. | rank | growing thick and coarse |
| 72. | recondite | little known and difficult |
| 73. | replete | completely filled |
| 74. | rich | full of detail or content |
| 75. | saturated | filled to capacity |
| 76. | shaggy | long, thick, and untidy |
| 77. | solid | firm and tightly packed |
| 78. | squat | short and broad |
| 79. | stout | thick and sturdy |
| 80. | stubby | short and thick |
| 81. | stuffed | packed full |
| 82. | substantial | large in amount or content |
| 83. | tangled | complicated and confused |
| 84. | technical | specialized and hard to grasp |
| 85. | teeming | full and crowded |
| 86. | thick | closely packed or heavy |
| 87. | thorny | difficult and complicated |
| 88. | thronged | full of people or things |
| 89. | tight | closely packed together |
| 90. | unclear | not easy to understand |
| 91. | uncomprehending | not understanding |
| 92. | unintelligent | not smart |
| 93. | vacuous | lacking intelligence or thought |
| 94. | vague | not clearly expressed |
| 95. | vapid | dull and empty-minded |
| 96. | viscous | thick and sticky |
| 97. | weighty | serious and substantial |
| 98. | witless | lacking sense or wit |
| 99. | wooden | stiff and dull |
| 100. | woolly | thick and fuzzy |