| No. | Term | Definition |
|---|---|---|
| 1. | Abstruse | Hard to understand; obscure. |
| 2. | Ambiguous | Open to multiple interpretations. |
| 3. | Arcane | Known by few; mysterious. |
| 4. | Atypical | Not usual; oddly different. |
| 5. | Baffling | Confusing; hard to explain. |
| 6. | Beyond grasp | Impossible to comprehend fully. |
| 7. | Brooding | Darkly thoughtful; ominous. |
| 8. | Cabalistic | Secretive; tied to occult lore. |
| 9. | Cloaked | Hidden from view or knowledge. |
| 10. | Covert | Concealed; not openly shown. |
| 11. | Cryptic | Secretive; puzzlingly indirect. |
| 12. | Curious | Strange; arousing interest. |
| 13. | Dark | Gloomy; suggesting hidden danger. |
| 14. | Deep | Not obvious; profound. |
| 15. | Delphic | Oracular; obscurely prophetic. |
| 16. | Disquieting | Unsettling; causing unease. |
| 17. | Dreamlike | Surreal; unreal in feel. |
| 18. | Eerie | Strangely frightening; uncanny. |
| 19. | Elusive | Hard to find or grasp. |
| 20. | Enigmatic | Hard to interpret; puzzling. |
| 21. | Esoteric | Understood by a select few. |
| 22. | Ethereal | Otherworldly; delicate and strange. |
| 23. | Exotic | Strikingly unusual; foreign-seeming. |
| 24. | Fathomless | Too deep to understand. |
| 25. | Foggy | Unclear; mentally hazy. |
| 26. | Forbidding | Threatening; unwelcoming. |
| 27. | Hidden | Kept out of sight. |
| 28. | Ill-defined | Not clearly described or known. |
| 29. | Impenetrable | Impossible to understand or enter. |
| 30. | Incomprehensible | Not able to be understood. |
| 31. | Indecipherable | Cannot be read or interpreted. |
| 32. | Indefinable | Hard to describe precisely. |
| 33. | Indeterminate | Not fixed; uncertain. |
| 34. | Inscrutable | Impossible to read or understand. |
| 35. | Intriguing | Fascinatingly puzzling. |
| 36. | Involved | Complex; not straightforward. |
| 37. | Ironic | Oddly contrary; puzzlingly so. |
| 38. | Labyrinthine | Complex; like a maze. |
| 39. | Masked | Concealed behind a facade. |
| 40. | Mercurial | Unpredictably changeable. |
| 41. | Mind-bending | Extremely puzzling; disorienting. |
| 42. | Mist-shrouded | Obscured; unclear. |
| 43. | Moody | Changeable; suggestively dark. |
| 44. | Murky | Dark; difficult to discern. |
| 45. | Mythic | Legendary; beyond ordinary reality. |
| 46. | Nebulous | Vague; lacking clear form. |
| 47. | Noir | Dark, shadowy, and suggestive. |
| 48. | Oblique | Indirect; not explicit. |
| 49. | Obscure | Not clear; little known. |
| 50. | Occult | Hidden; beyond normal knowledge. |
| 51. | Ominous | Suggesting something bad ahead. |
| 52. | Opaque | Not transparent; hard to understand. |
| 53. | Oracular | Prophetic; cryptically wise. |
| 54. | Outlandish | Bizarre; wildly unusual. |
| 55. | Overcast | Gloomy; shadowed in tone. |
| 56. | Peculiar | Strange; unusual. |
| 57. | Perplexing | Bewildering; confusing. |
| 58. | Phantasmal | Ghostlike; unreal. |
| 59. | Puzzling | Causing confusion or wonder. |
| 60. | Queer | Strange; odd. |
| 61. | Questionable | Doubtful; open to suspicion. |
| 62. | Quizzical | Puzzled; teasingly curious. |
| 63. | Recondite | Little known; hard to grasp. |
| 64. | Remote | Distant; hard to access. |
| 65. | Riddle-like | Resembling a riddle. |
| 66. | Riddling | Full of puzzles or riddles. |
| 67. | Runic | Suggesting ancient secret symbols. |
| 68. | Secret | Kept hidden from others. |
| 69. | Shadowed | Dim; partially concealed. |
| 70. | Shadowy | Dark; indistinct; suspicious. |
| 71. | Shrouded | Covered; hidden from view. |
| 72. | Sinister | Suggesting harm or evil. |
| 73. | Sleight-of-hand | Deceptively skillful; tricky. |
| 74. | Slippery | Hard to pin down. |
| 75. | Sphinxlike | Silent; enigmatically reserved. |
| 76. | Spooky | Eerily unsettling. |
| 77. | Strange | Unfamiliar; odd. |
| 78. | Subtle | Not obvious; finely hidden. |
| 79. | Supernatural | Beyond natural explanation. |
| 80. | Surreal | Dreamlike; bizarrely unreal. |
| 81. | Suspect | Possibly wrong or deceptive. |
| 82. | Suspicious | Arousing doubt or mistrust. |
| 83. | Taciturn | Quiet; not revealing much. |
| 84. | Tantalizing | Alluring yet hard to know. |
| 85. | Teasing | Hinting without revealing. |
| 86. | Tenebrous | Dark; shadowy; obscure. |
| 87. | Terse | Brief; leaving much unsaid. |
| 88. | Thick with secrets | Full of hidden truths. |
| 89. | Tricksy | Playfully deceptive; sly. |
| 90. | Unaccountable | Without clear cause; puzzling. |
| 91. | Uncanny | Strangely familiar; unsettling. |
| 92. | Unclear | Not easy to understand. |
| 93. | Unexplained | Not accounted for; unknown. |
| 94. | Unfathomable | Impossible to fully understand. |
| 95. | Unknowable | Impossible to know. |
| 96. | Unrevealed | Not disclosed; kept hidden. |
| 97. | Unsettling | Disturbing; causing unease. |
| 98. | Unsolved | Not yet explained or resolved. |
| 99. | Veiled | Partly hidden; disguised. |
| 100. | Whimsical | Oddly playful; unpredictable. |