| No. | Item | Definition |
|---|---|---|
| 1. | ambiguous | unclear and open to doubt |
| 2. | artful | cleverly deceptive |
| 3. | backdoor | done secretly or indirectly |
| 4. | base | morally low or contemptible |
| 5. | bent | dishonest or corrupt |
| 6. | bogus | false or fraudulent |
| 7. | bribable | able to be corrupted |
| 8. | cagey | secretive and evasive |
| 9. | clandestine | kept secret, often improperly |
| 10. | compromised | damaged by improper conduct |
| 11. | conniving | secretly plotting something dishonest |
| 12. | corrupt | morally rotten or bribable |
| 13. | corruptible | capable of being bribed |
| 14. | counterfeit | made to deceive |
| 15. | covert | hidden or secretive |
| 16. | criminal | involving crime or lawbreaking |
| 17. | crooked | dishonest or corrupt |
| 18. | dark | morally troubling or secretive |
| 19. | deceitful | given to lying or trickery |
| 20. | devious | sneaky and not straightforward |
| 21. | dirty | dishonest or morally foul |
| 22. | dishonest | not truthful or trustworthy |
| 23. | disreputable | having a bad reputation |
| 24. | dissolute | morally loose and corrupt |
| 25. | dodgy | seemingly dishonest or unreliable |
| 26. | dubious | not to be trusted |
| 27. | duplicitous | deceptively double-faced |
| 28. | equivocal | open to more than one meaning |
| 29. | evasive | avoiding direct answers suspiciously |
| 30. | exploitative | taking unfair advantage |
| 31. | fake | not genuine; deceptive |
| 32. | false | not true or honest |
| 33. | fishy | seeming dishonest or wrong |
| 34. | fixing | dishonestly arranged |
| 35. | fly-by-night | unreliable and dishonest |
| 36. | fraudulent | involving deceit or cheating |
| 37. | funny | odd in a suspicious way |
| 38. | furtive | secretive to avoid notice |
| 39. | glib | smooth but insincere |
| 40. | grimy | morally sordid or dirty |
| 41. | guileful | full of deceit |
| 42. | iffy | doubtful or unreliable |
| 43. | illegal | against the law |
| 44. | illicit | not legally permitted |
| 45. | immoral | not following moral standards |
| 46. | improper | not appropriate or honest |
| 47. | insincere | not genuinely honest |
| 48. | louche | disreputable yet stylish |
| 49. | low | morally base or mean |
| 50. | manipulative | controlling others unfairly |
| 51. | masked | concealed behind a front |
| 52. | mercenary | motivated only by gain |
| 53. | misleading | giving a false impression |
| 54. | murky | unclear and suspicious |
| 55. | mysterious | hard to explain or trust |
| 56. | nefarious | wicked or criminal |
| 57. | obscure | not clear or transparent |
| 58. | off | not quite right or trustworthy |
| 59. | oily | smarmily slick and untrustworthy |
| 60. | opaque | not transparent or clear |
| 61. | opportunistic | taking selfish advantage |
| 62. | phony | fake and deceptive |
| 63. | predatory | seeking to exploit others |
| 64. | problematic | causing concern or suspicion |
| 65. | queer | strange or suspicious |
| 66. | questionable | open to doubt or suspicion |
| 67. | rackety | dishonest or disreputable |
| 68. | raffish | disreputable but flashy |
| 69. | rascally | dishonestly mischievous |
| 70. | rigged | dishonestly manipulated |
| 71. | roguish | dishonest in a charming way |
| 72. | scheming | making secret dishonest plans |
| 73. | seedy | sordid and disreputable |
| 74. | shadowy | secretive and suspicious |
| 75. | shifty | appearing deceitful or evasive |
| 76. | sinister | suggesting evil intent |
| 77. | sketchy | appearing unsafe, dubious, or dishonest |
| 78. | sleazy | morally dirty or disreputable |
| 79. | slippery | hard to pin down or trust |
| 80. | sly | secretly cunning or deceitful |
| 81. | sneaky | secretive and dishonest |
| 82. | sordid | morally degraded and dirty |
| 83. | specious | misleadingly plausible |
| 84. | spurious | false but presented as real |
| 85. | surreptitious | done secretly and stealthily |
| 86. | suspect | possibly dishonest or illegal |
| 87. | suspicious | seeming dishonest or untrustworthy |
| 88. | tainted | spoiled by wrongdoing |
| 89. | tricky | deceptive or hard to trust |
| 90. | two-faced | insincere and deceitful |
| 91. | undependable | not reliable or trustworthy |
| 92. | under-the-table | done secretly and illegally |
| 93. | underhanded | secretly dishonest or unfair |
| 94. | unethical | not morally right |
| 95. | unreliable | not dependable or trustworthy |
| 96. | unscrupulous | having no moral principles |
| 97. | untrustworthy | not deserving trust |
| 98. | venal | open to bribery |
| 99. | villainous | wickedly dishonest or evil |
| 100. | wily | cleverly deceptive |
