| No. | Item | Definition |
|---|---|---|
| 1. | adversarial | involving active opposition |
| 2. | alarming | causing fear or concern |
| 3. | antagonistic | actively opposed or hostile |
| 4. | awkward | causing difficulty or trouble |
| 5. | bad | unfavorable or poor |
| 6. | baleful | threatening harm or evil |
| 7. | baneful | causing ruin or harm |
| 8. | belligerent | hostile and aggressive |
| 9. | bleak | without hope or encouragement |
| 10. | brutal | very harsh or severe |
| 11. | burdensome | hard to bear |
| 12. | calamitous | bringing disaster or misery |
| 13. | catastrophic | causing sudden great damage |
| 14. | combative | ready to fight or argue |
| 15. | conflicting | not in agreement |
| 16. | confrontational | tending toward conflict |
| 17. | contentious | causing or involving dispute |
| 18. | corrosive | gradually damaging or harmful |
| 19. | counterproductive | producing the opposite effect |
| 20. | damaging | causing harm or loss |
| 21. | dangerous | likely to cause harm |
| 22. | deleterious | harmful in effect |
| 23. | depressing | causing sadness or gloom |
| 24. | detrimental | causing harm or damage |
| 25. | dire | extremely serious or urgent |
| 26. | disadvantageous | causing a disadvantage |
| 27. | discouraging | reducing confidence or hope |
| 28. | disheartening | causing loss of hope |
| 29. | distressing | causing anxiety or sorrow |
| 30. | faulty | containing mistakes or defects |
| 31. | flawed | having faults or defects |
| 32. | fruitless | producing no useful result |
| 33. | futile | incapable of useful result |
| 34. | gloomy | dark, depressing, or pessimistic |
| 35. | grave | very serious or harmful |
| 36. | grim | harsh and worrying |
| 37. | harmful | causing damage or injury |
| 38. | harsh | unpleasantly rough or strict |
| 39. | hazardous | involving danger or risk |
| 40. | hopeless | offering no chance of success |
| 41. | hostile | showing opposition or resistance |
| 42. | ill | unfavorable or harmful |
| 43. | inapt | not suitable or fitting |
| 44. | inauspicious | suggesting bad outcomes ahead |
| 45. | incompatible | unable to exist together |
| 46. | inconvenient | causing trouble or difficulty |
| 47. | injurious | causing harm or offense |
| 48. | intractable | hard to control or manage |
| 49. | irreconcilable | impossible to make compatible |
| 50. | lamentable | very unfortunate or regrettable |
| 51. | malevolent | wishing to do harm |
| 52. | malign | harmful in influence |
| 53. | nasty | unpleasant or harmful |
| 54. | negative | harmful, unfavorable, or pessimistic |
| 55. | nettlesome | causing irritation or trouble |
| 56. | noxious | harmful or poisonous |
| 57. | obstructive | tending to hinder progress |
| 58. | ominous | suggesting something bad ahead |
| 59. | onerous | involving heavy difficulty |
| 60. | opposed | against something or someone |
| 61. | opposing | acting against something |
| 62. | oppositional | marked by resistance or opposition |
| 63. | oppressive | cruelly burdensome or harsh |
| 64. | perilous | full of danger |
| 65. | pernicious | very harmful, often gradually |
| 66. | poor | inferior or unfavorable |
| 67. | prejudicial | causing harm or disadvantage |
| 68. | problematic | presenting problems or difficulties |
| 69. | punishing | extremely demanding or harsh |
| 70. | regrettable | unfortunate and disappointing |
| 71. | resistant | not accepting or yielding |
| 72. | risky | involving possible harm or loss |
| 73. | rocky | full of difficulties or problems |
| 74. | ruinous | causing ruin or collapse |
| 75. | serious | grave or significant |
| 76. | severe | harsh or intense |
| 77. | sinister | suggesting harm or evil |
| 78. | sorry | poor or regrettable |
| 79. | sour | unfavorable in attitude |
| 80. | stormy | marked by conflict or trouble |
| 81. | suboptimal | less than the best |
| 82. | taxing | demanding much effort |
| 83. | tempestuous | very turbulent or troubled |
| 84. | threatening | suggesting danger or harm |
| 85. | tragic | causing great sadness or loss |
| 86. | trying | difficult and stressful |
| 87. | turbulent | full of disorder or conflict |
| 88. | unbeneficial | not producing benefit |
| 89. | unfavorable | not likely to help or succeed |
| 90. | unfortunate | having bad results or luck |
| 91. | unpromising | not likely to turn out well |
| 92. | unpropitious | not indicating future success |
| 93. | unsafe | not safe or secure |
| 94. | untoward | unfavorable or inconvenient |
| 95. | unwelcome | not wanted or pleasing |
| 96. | vain | without success or result |
| 97. | vexing | causing annoyance or difficulty |
| 98. | wanting | lacking or deficient |
| 99. | woeful | very bad or sad |
| 100. | worrying | causing concern or anxiety |
