| No. | Item | Definition |
|---|---|---|
| 1. | ambiguous | having more than one meaning |
| 2. | arguable | able to be disputed |
| 3. | baseless | without support or reason |
| 4. | bogus | not genuine or true |
| 5. | borderline | only partly acceptable or sound |
| 6. | challengeable | able to be questioned |
| 7. | cloudy | unclear or hard to judge |
| 8. | compromised | made doubtful by problems |
| 9. | conjectural | based on guesswork |
| 10. | contentious | causing or involving dispute |
| 11. | contestable | able to be challenged |
| 12. | contested | challenged or argued against |
| 13. | controversial | likely to cause disagreement |
| 14. | criticizable | deserving criticism or doubt |
| 15. | crooked | dishonest or illegal |
| 16. | dark | morally suspect or unclear |
| 17. | debatable | open to argument or doubt |
| 18. | devious | dishonest in a sneaky way |
| 19. | dicey | risky, uncertain, or suspect |
| 20. | dishonest | not truthful or fair |
| 21. | disputable | open to disagreement or doubt |
| 22. | disputed | not generally accepted as true |
| 23. | dodgy | possibly dishonest or unsafe |
| 24. | doubtful | uncertain, unreliable, or suspect |
| 25. | dubious | not likely to be honest or true |
| 26. | dubitable | able to be doubted |
| 27. | equivocal | open to more than one meaning |
| 28. | erroneous | incorrect or mistaken |
| 29. | fabricated | made up, not genuine |
| 30. | fake | not genuine or real |
| 31. | fallible | capable of being mistaken |
| 32. | false | not true or correct |
| 33. | fanciful | overly imaginative, not factual |
| 34. | far-fetched | too unlikely to be convincing |
| 35. | faulty | containing errors or weaknesses |
| 36. | fishy | seeming dishonest or suspicious |
| 37. | flawed | having an important weakness |
| 38. | flimsy | weak and not convincing |
| 39. | groundless | without factual basis |
| 40. | hard to credit | difficult to believe |
| 41. | hazy | unclear or uncertain |
| 42. | hypothetical | supposed rather than proven |
| 43. | iffy | uncertain or not trustworthy |
| 44. | ill-founded | poorly based or reasoned |
| 45. | ill-substantiated | not well supported by proof |
| 46. | ill-supported | not backed by enough evidence |
| 47. | imperfect | not fully correct or sound |
| 48. | implausible | hard to believe as true |
| 49. | inconclusive | not leading to a clear result |
| 50. | indefinite | not exact, clear, or settled |
| 51. | indeterminate | not definitely known or fixed |
| 52. | invalid | not legally or logically sound |
| 53. | marginal | barely acceptable or convincing |
| 54. | misleading | giving a wrong impression |
| 55. | mistaken | wrong or based on error |
| 56. | moot | open to debate or uncertainty |
| 57. | murky | unclear, suspicious, or confusing |
| 58. | not aboveboard | not open and honest |
| 59. | not on the level | not honest or fair |
| 60. | obscure | not clear or easily understood |
| 61. | on shaky ground | not firmly supported |
| 62. | opaque | not clear or transparent |
| 63. | open | not yet decided or settled |
| 64. | phony | fake or dishonest |
| 65. | precarious | unsafe, unstable, or uncertain |
| 66. | problematic | causing concern or seeming wrong |
| 67. | refutable | capable of being proved wrong |
| 68. | shadowy | vague, secretive, or suspicious |
| 69. | shady | slightly dishonest or suspicious |
| 70. | shaky | weak, unreliable, or doubtful |
| 71. | slippery | hard to pin down or trust |
| 72. | specious | seemingly true but misleading |
| 73. | speculative | based on guessing, not proof |
| 74. | spurious | false but appearing real |
| 75. | strained | forced and unconvincing |
| 76. | suspect | possibly dishonest, unsafe, or false |
| 77. | suspicious | causing doubt or distrust |
| 78. | tainted | damaged by suspicion or wrongdoing |
| 79. | tenuous | weakly supported or uncertain |
| 80. | thin | lacking enough support |
| 81. | touch-and-go | uncertain and risky |
| 82. | uncertain | not clearly true or reliable |
| 83. | unclear | not plain or certain |
| 84. | unconfirmed | not yet proved or verified |
| 85. | unconvincing | failing to seem believable |
| 86. | underhanded | secretly dishonest or unfair |
| 87. | undetermined | not yet decided or established |
| 88. | unfounded | not based on facts |
| 89. | unproven | not yet shown to be true |
| 90. | unreliable | not dependable or trustworthy |
| 91. | unsettled | not resolved or certain |
| 92. | unsound | not based on good reasoning |
| 93. | unstable | not firm, steady, or reliable |
| 94. | unsubstantiated | not supported by evidence |
| 95. | unsupported | lacking evidence or backing |
| 96. | untrustworthy | not deserving trust |
| 97. | unverified | not checked or confirmed |
| 98. | vague | not clearly expressed or defined |
| 99. | weak | lacking strength or support |
| 100. | wrong | not correct or morally right |