| No. | Item | Definition |
|---|---|---|
| 1. | ambiguous | having more than one meaning |
| 2. | backlit | lit from behind, obscuring detail |
| 3. | blackish | somewhat black or dark |
| 4. | bleak | dark, cold, and dreary |
| 5. | bleary | dim or blurred |
| 6. | blurred | made indistinct or unclear |
| 7. | blurry | lacking sharpness or clarity |
| 8. | boggy | soft, wet, and muddy |
| 9. | brooding | darkly threatening or thoughtful |
| 10. | cagey | careful not to reveal much |
| 11. | chaotic | completely disordered and unclear |
| 12. | cloaked | hidden or disguised |
| 13. | closemouthed | unwilling to speak openly |
| 14. | clouded | made unclear or gloomy |
| 15. | cloudy | not clear or transparent |
| 16. | confused | not clear or understandable |
| 17. | crooked | dishonest or corrupt |
| 18. | cryptic | mysterious and hard to understand |
| 19. | dark | hard to see through |
| 20. | devious | not straightforward or honest |
| 21. | dim | faintly lit or unclear |
| 22. | doubtful | uncertain or questionable |
| 23. | drab | dull and lacking brightness |
| 24. | dubious | not to be relied on |
| 25. | dull | not bright or vivid |
| 26. | dusky | somewhat dark or dim |
| 27. | eerie | strange and frightening |
| 28. | elliptical | leaving things unsaid |
| 29. | enigmatic | difficult to interpret |
| 30. | equivocal | open to multiple meanings |
| 31. | evasive | avoiding clear answers |
| 32. | film-covered | coated with a thin layer |
| 33. | fishy | seeming dishonest or suspicious |
| 34. | foggy | covered with fog or confusion |
| 35. | fuzzy | not clear or definite |
| 36. | garbled | distorted and hard to understand |
| 37. | gloomy | dark, dull, or depressing |
| 38. | guarded | careful and not fully open |
| 39. | half-lit | only partly illuminated |
| 40. | hard to make out | difficult to see clearly |
| 41. | hazy | slightly unclear or blurred |
| 42. | hidden | kept out of sight |
| 43. | ill-defined | not clearly outlined |
| 44. | illegible | not clear enough to read |
| 45. | impenetrable | impossible to understand fully |
| 46. | incomprehensible | impossible to understand |
| 47. | indeterminate | not exactly known or fixed |
| 48. | indirect | not straightforward or direct |
| 49. | indiscernible | unable to be clearly seen |
| 50. | indistinct | not sharply clear |
| 51. | inexplicit | not clearly stated |
| 52. | inscrutable | hard to interpret or understand |
| 53. | jumbled | mixed up and unclear |
| 54. | lackluster | without shine or clarity |
| 55. | light-starved | lacking enough light |
| 56. | lightless | without light |
| 57. | low-lit | dimly illuminated |
| 58. | masked | concealed or disguised |
| 59. | misty | filled with light mist |
| 60. | mucky | dirty with mud or filth |
| 61. | muddied | made dirty or unclear |
| 62. | muddled | confused or disordered |
| 63. | muddy | dirty and unclear |
| 64. | mysterious | hard to explain or know |
| 65. | nebulous | vague and ill-defined |
| 66. | not aboveboard | not open or honest |
| 67. | oblique | indirect or not explicit |
| 68. | obscure | not clear or easy to see |
| 69. | off-color | somewhat dirty-looking or dull |
| 70. | opaque | not letting light through |
| 71. | overcast | covered with clouds |
| 72. | pea-soupy | thick and foggy |
| 73. | questionable | open to doubt |
| 74. | reticent | not revealing much |
| 75. | roundabout | not direct or plain |
| 76. | sediment-laden | full of suspended sediment |
| 77. | shadowy | dimly seen or mysterious |
| 78. | shady | dishonest or suspicious |
| 79. | silty | full of fine sediment |
| 80. | slippery | hard to pin down |
| 81. | sludgy | thick, dirty, and unclear |
| 82. | smeared | blurred by spreading |
| 83. | smoky | filled with smoke or haze |
| 84. | smudged | marked and blurred |
| 85. | suspect | possibly dishonest or unsound |
| 86. | swampy | wet, muddy, and unclear |
| 87. | tenebrous | dark and obscure |
| 88. | tight-lipped | not revealing information |
| 89. | turbid | clouded with stirred-up matter |
| 90. | uncanny | strangely mysterious |
| 91. | uncertain | not definite or clear |
| 92. | unclear | not easy to understand or see |
| 93. | undefined | not clearly described |
| 94. | underhanded | secretly dishonest |
| 95. | unfathomable | too deep or obscure to grasp |
| 96. | unreadable | too unclear to read |
| 97. | unsettled | not clear or resolved |
| 98. | vague | not clearly expressed |
| 99. | veiled | partly hidden from view |
| 100. | weird | strangely unclear or odd |