| No. | Item | Definition |
|---|---|---|
| 1. | adversity | Difficult or unlucky circumstances. |
| 2. | affliction | A cause of suffering. |
| 3. | ambiguity | Unclear meaning or situation. |
| 4. | annoyance | Something irritating or troublesome. |
| 5. | barrier | Something preventing progress. |
| 6. | bind | A difficult or restrictive situation. |
| 7. | blunder | A serious careless mistake. |
| 8. | breakdown | A failure of function. |
| 9. | bug | A software or system fault. |
| 10. | burden | A heavy responsibility or difficulty. |
| 11. | catch | A hidden drawback. |
| 12. | challenge | A demanding task or situation. |
| 13. | complication | Something making matters harder. |
| 14. | concern | A cause for worry. |
| 15. | conflict | A serious disagreement. |
| 16. | confusion | Lack of clarity. |
| 17. | constraint | A limiting condition. |
| 18. | conundrum | A puzzling difficulty. |
| 19. | debacle | A sudden complete failure. |
| 20. | defect | A flaw or imperfection. |
| 21. | difficulty | Something hard to handle. |
| 22. | dilemma | A difficult choice. |
| 23. | disadvantage | An unfavorable condition. |
| 24. | dispute | A disagreement or argument. |
| 25. | downside | A negative aspect. |
| 26. | drawback | A disadvantage or downside. |
| 27. | emergency | An urgent dangerous situation. |
| 28. | enigma | Something mysterious or puzzling. |
| 29. | entanglement | A complicated involvement. |
| 30. | error | A mistake or fault. |
| 31. | failure | A lack of success. |
| 32. | fault | A defect or responsibility. |
| 33. | fiasco | A complete failure. |
| 34. | fix | A difficult situation. |
| 35. | flaw | A weakness or imperfection. |
| 36. | gap | A missing part or difference. |
| 37. | glitch | A small technical fault. |
| 38. | gray area | An unclear matter. |
| 39. | hardship | Severe difficulty or suffering. |
| 40. | hassle | An irritating difficulty. |
| 41. | headache | An annoying difficulty. |
| 42. | hindrance | Something causing delay or difficulty. |
| 43. | hitch | A temporary difficulty or delay. |
| 44. | hurdle | A difficulty to overcome. |
| 45. | imbroglio | A complicated embarrassing situation. |
| 46. | impediment | Something that hinders progress. |
| 47. | irritant | Something causing annoyance. |
| 48. | issue | A matter needing attention. |
| 49. | jam | A difficult situation. |
| 50. | knot | A complicated difficulty. |
| 51. | lack | An absence or shortage. |
| 52. | liability | A troublesome disadvantage. |
| 53. | limitation | A restricting weakness. |
| 54. | loose end | An unresolved detail. |
| 55. | malfunction | A failure to work properly. |
| 56. | matter | An issue or concern. |
| 57. | mess | A troublesome disorder. |
| 58. | misfortune | Bad luck or trouble. |
| 59. | misstep | A mistaken action. |
| 60. | mistake | An incorrect action or judgment. |
| 61. | mix-up | A confused mistake. |
| 62. | muddle | A confused situation. |
| 63. | mystery | Something not understood. |
| 64. | no-win situation | A situation with no good outcome. |
| 65. | nuisance | An annoying difficulty. |
| 66. | obstacle | Something blocking progress. |
| 67. | open question | An unresolved matter. |
| 68. | ordeal | A painful difficult experience. |
| 69. | oversight | An accidental omission. |
| 70. | pickle | A difficult situation. |
| 71. | pitfall | A hidden danger or difficulty. |
| 72. | plight | A dangerous or difficult situation. |
| 73. | point of contention | A disputed issue. |
| 74. | predicament | A difficult or unpleasant situation. |
| 75. | pressure | A demanding force or burden. |
| 76. | puzzle | Something difficult to understand. |
| 77. | quagmire | A complex difficult situation. |
| 78. | quandary | A state of uncertainty. |
| 79. | question | A matter needing resolution. |
| 80. | riddle | A puzzling question. |
| 81. | roadblock | A major obstacle. |
| 82. | rub | The main difficulty. |
| 83. | setback | A reversal or delay. |
| 84. | shortage | An insufficient amount. |
| 85. | shortcoming | A fault or limitation. |
| 86. | slip-up | A small careless mistake. |
| 87. | snafu | A confused or bungled situation. |
| 88. | snag | A small unexpected difficulty. |
| 89. | sticking point | A point causing disagreement. |
| 90. | stumbling block | An obstacle to progress. |
| 91. | tight corner | A difficult situation. |
| 92. | tight spot | A difficult situation. |
| 93. | trial | A difficult test or experience. |
| 94. | tribulation | A severe trouble or suffering. |
| 95. | trouble | A source of distress. |
| 96. | unfinished business | An unresolved matter. |
| 97. | weak spot | A vulnerable weakness. |
| 98. | weakness | A limiting defect. |
| 99. | worry | A cause of anxiety. |
| 100. | wrinkle | A minor complication. |
