| No. | Item | Definition |
|---|---|---|
| 1. | acute | serious or severe |
| 2. | adverse | harmful or unfavorable |
| 3. | agitating | causing nervous unease |
| 4. | alarming | causing fear or concern |
| 5. | annoying | causing irritation |
| 6. | appalling | causing shock or dismay |
| 7. | awkward | causing discomfort or concern |
| 8. | bad | causing concern or difficulty |
| 9. | bleak | giving little hope |
| 10. | bothersome | causing annoyance or concern |
| 11. | brutal | harsh and upsetting |
| 12. | bumpy | full of difficulties |
| 13. | concerning | causing concern |
| 14. | creepy | causing uneasy fear |
| 15. | critical | serious and worrying |
| 16. | crushing | causing severe disappointment |
| 17. | daunting | seeming hard or intimidating |
| 18. | delicate | requiring careful handling |
| 19. | dire | extremely serious or worrying |
| 20. | discomfiting | causing embarrassment or unease |
| 21. | disconcerting | making someone feel unsettled |
| 22. | disquieting | causing unease or anxiety |
| 23. | distressing | causing pain or anxiety |
| 24. | disturbing | causing worry or unease |
| 25. | eerie | strange and frightening |
| 26. | embarrassing | causing shame or discomfort |
| 27. | explosive | likely to cause sudden trouble |
| 28. | foreboding | suggesting future trouble |
| 29. | fraught | full of anxiety |
| 30. | frazzling | causing stress or strain |
| 31. | fretful | causing worry |
| 32. | frightening | causing fear or worry |
| 33. | frustrating | causing frustration |
| 34. | gnawing | persistently distressing |
| 35. | grave | seriously concerning |
| 36. | grim | serious and depressing |
| 37. | hairy | risky or difficult |
| 38. | harrowing | deeply distressing |
| 39. | haunting | lingeringly disturbing |
| 40. | hazardous | involving danger |
| 41. | heartbreaking | causing deep sadness |
| 42. | horrifying | causing horror or distress |
| 43. | iffy | uncertain or questionable |
| 44. | inflammatory | likely to provoke anger |
| 45. | intimidating | causing fear or unease |
| 46. | irksome | annoying or troublesome |
| 47. | irritating | causing annoyance |
| 48. | jarring | causing shock or discomfort |
| 49. | lamentable | deserving regret or concern |
| 50. | menacing | suggesting danger or harm |
| 51. | nagging | persistently worrying |
| 52. | nasty | unpleasant or concerning |
| 53. | nerve-racking | causing intense anxiety |
| 54. | nerve-wracking | causing intense stress |
| 55. | nettlesome | causing annoyance or difficulty |
| 56. | objectionable | causing dislike or concern |
| 57. | odd | strange and concerning |
| 58. | off-putting | causing dislike or unease |
| 59. | offensive | causing hurt or upset |
| 60. | ominous | suggesting something bad |
| 61. | oppressive | causing mental discomfort |
| 62. | painful | emotionally difficult or upsetting |
| 63. | perilous | full of danger |
| 64. | perturbing | causing mental unease |
| 65. | pitiful | causing sadness or concern |
| 66. | precarious | dangerously uncertain |
| 67. | pressing | needing immediate attention |
| 68. | problematic | causing difficulty or concern |
| 69. | provocative | likely to upset or anger |
| 70. | questionable | open to doubt or concern |
| 71. | rattling | causing nervous unease |
| 72. | regrettable | causing disappointment or concern |
| 73. | risky | involving possible harm |
| 74. | rocky | unstable or difficult |
| 75. | sensitive | likely to cause concern |
| 76. | serious | causing significant concern |
| 77. | shocking | causing surprise and distress |
| 78. | sinister | suggesting evil or danger |
| 79. | spooky | causing unease or fear |
| 80. | strange | unusual and unsettling |
| 81. | stressful | causing stress |
| 82. | suspect | causing doubt or concern |
| 83. | tense | causing nervous strain |
| 84. | thorny | difficult and sensitive |
| 85. | threatening | suggesting possible harm |
| 86. | touch-and-go | uncertain and risky |
| 87. | tragic | causing great sadness |
| 88. | troublesome | causing difficulty or annoyance |
| 89. | trying | hard to endure |
| 90. | ugly | unpleasant or troubling |
| 91. | uneasy | causing discomfort or concern |
| 92. | unnerving | making someone feel nervous |
| 93. | unpleasant | causing discomfort or displeasure |
| 94. | unsettling | making someone feel uneasy |
| 95. | upsetting | causing emotional distress |
| 96. | vexing | causing irritation or concern |
| 97. | volatile | likely to become dangerous |
| 98. | weird | strange and unsettling |
| 99. | worrisome | causing worry |
| 100. | worrying | causing concern or anxiety |