| No. | Item | Definition |
|---|---|---|
| 1. | abstruseness | quality of being difficult to understand |
| 2. | aggregation | collection of many parts together |
| 3. | amalgam | mixture of different elements |
| 4. | amalgamation | combining of different elements |
| 5. | ambiguity | quality of having multiple possible meanings |
| 6. | assortment | varied collection of things |
| 7. | blend | mixture of different elements |
| 8. | briar patch | tangled and troublesome situation |
| 9. | challenge | difficult task or situation |
| 10. | complicatedness | quality of being complicated |
| 11. | complication | factor making something harder |
| 12. | compound | thing made of combined parts |
| 13. | confluence | coming together of factors or streams |
| 14. | confusion | state of being unclear or mixed |
| 15. | conundrum | difficult problem or question |
| 16. | convergence | coming together of multiple elements |
| 17. | convolutedness | quality of being twisted and complicated |
| 18. | crypticness | quality of being mysterious or unclear |
| 19. | delicacy | need for careful handling |
| 20. | density | concentration of information or detail |
| 21. | depth | extent of detail or seriousness |
| 22. | difficult matter | matter hard to understand or resolve |
| 23. | difficult situation | situation hard to manage |
| 24. | difficulty | state of being hard to handle |
| 25. | elaborateness | quality of being highly detailed |
| 26. | enigma | something difficult to understand |
| 27. | entanglement | state of being tangled or complicated |
| 28. | entwinement | state of being twisted together |
| 29. | fabric | interwoven structure of something |
| 30. | fusion | joining into a single whole |
| 31. | Gordian knot | extremely difficult problem |
| 32. | grain | fine structure or texture |
| 33. | heterogeneity | state of being varied in composition |
| 34. | hodgepodge | confused mixture of different things |
| 35. | impenetrability | quality of being hard to understand |
| 36. | incomprehensibility | quality of being impossible to understand |
| 37. | inscrutability | quality of being impossible to interpret |
| 38. | interconnectedness | quality of being linked together |
| 39. | interconnection | state of being mutually linked |
| 40. | interdependence | mutual dependence among parts |
| 41. | interrelatedness | quality of being mutually connected |
| 42. | interrelation | connection between related parts |
| 43. | interweaving | joining into a complicated whole |
| 44. | intricacy | quality of being detailed and involved |
| 45. | intricateness | quality of having many interwoven details |
| 46. | involution | complicated turning inward or entanglement |
| 47. | involvement | state of being complicated or entangled |
| 48. | jumble | confused mixture of things |
| 49. | jungle | confusingly complicated environment |
| 50. | knot | difficult or tangled problem |
| 51. | knottiness | state of being difficult to solve |
| 52. | labyrinth | highly complicated or confusing system |
| 53. | many-sidedness | quality of having many aspects |
| 54. | matrix | surrounding structure of connected elements |
| 55. | maze | confusingly complicated arrangement |
| 56. | mesh | interwoven network of parts |
| 57. | mess | confused or complicated situation |
| 58. | muddle | confused and complicated state |
| 59. | multilayeredness | quality of having many layers |
| 60. | multiplicity | state of having many parts |
| 61. | mysteriousness | quality of being hard to explain |
| 62. | mystery | something unexplained or difficult to understand |
| 63. | network | system of interconnected parts |
| 64. | nexus | connected center or linkage |
| 65. | nuance | fine distinction adding difficulty |
| 66. | obliqueness | indirectness that makes something hard |
| 67. | obscurity | state of being unclear or hard |
| 68. | opacity | quality of being hard to understand |
| 69. | opaqueness | quality of being unclear or obscure |
| 70. | overlap | shared area or connection between parts |
| 71. | patchwork | mixture of varied pieces |
| 72. | perplexity | state of being puzzling or confusing |
| 73. | problem | matter needing solution or explanation |
| 74. | profundity | great depth of meaning or thought |
| 75. | puzzle | problem difficult to understand or solve |
| 76. | quagmire | difficult and complicated situation |
| 77. | rat’s nest | very tangled or confused mess |
| 78. | reconditeness | quality of being obscure or difficult |
| 79. | richness | fullness of detail or variety |
| 80. | riddle | puzzling problem or mystery |
| 81. | snarl | tangled or complicated situation |
| 82. | sophistication | advanced or complicated refinement |
| 83. | sticky issue | awkward or difficult issue |
| 84. | substance | important content or depth |
| 85. | subtlety | quality of being delicate or hard |
| 86. | synthesis | combination of ideas or elements |
| 87. | tangle | confused or complicated situation |
| 88. | tapestry | intricate combination of many elements |
| 89. | texture | detailed quality of a situation |
| 90. | thicket | dense mass of complications |
| 91. | thorniness | quality of being troublesome and difficult |
| 92. | thorny issue | issue difficult to handle |
| 93. | trickiness | quality of being difficult or delicate |
| 94. | tricky issue | issue requiring careful handling |
| 95. | uncertainty | state of not being clear or settled |
| 96. | unintelligibility | quality of being impossible to comprehend |
| 97. | vexed question | difficult and disputed question |
| 98. | web | interconnected and complicated structure |
| 99. | weight | seriousness or burden of a matter |
| 100. | weightiness | quality of being serious or difficult |
