| No. | Item | Definition |
|---|---|---|
| 1. | agnostic | Noncommittal from uncertainty. |
| 2. | ambivalent | Having mixed doubts. |
| 3. | anxious | Worried about possible harm. |
| 4. | apprehensive | Anxious about possible trouble. |
| 5. | astute | Sharp and cautious in judgment. |
| 6. | bitter | Resentful and cynical. |
| 7. | buttoned-up | Reserved and guarded. |
| 8. | cagey | Wary and unwilling to reveal. |
| 9. | canny | Shrewdly cautious. |
| 10. | cautious | Careful to avoid risk. |
| 11. | chary | Cautious about trusting or acting. |
| 12. | circumspect | Careful and prudent. |
| 13. | clear-eyed | Realistic and not naive. |
| 14. | closemouthed | Guarded and not communicative. |
| 15. | cynical | Distrusting others’ sincerity. |
| 16. | defensive | Protective against perceived threat. |
| 17. | disbelieving | Not accepting as true. |
| 18. | disenchanted | No longer trusting ideals. |
| 19. | disillusioned | Freed from trusting illusions. |
| 20. | distrusting | Not trusting someone or something. |
| 21. | doubtful | Not sure or trusting. |
| 22. | doubting | Inclined to question truth. |
| 23. | dubious | Doubtful or uncertain. |
| 24. | eagle-eyed | Extremely watchful and observant. |
| 25. | equivocal | Uncertain or doubtful. |
| 26. | faithless | Lacking faith or trust. |
| 27. | fearful | Afraid and cautious. |
| 28. | foxy | Cleverly wary. |
| 29. | frankly skeptical | Honestly showing doubt. |
| 30. | guarded | Careful and not fully open. |
| 31. | hard to convince | Not easily persuaded. |
| 32. | hard to persuade | Not easily convinced. |
| 33. | hard to reassure | Not easily made confident. |
| 34. | hard to satisfy | Not easily reassured. |
| 35. | hard-nosed | Tough-minded and skeptical. |
| 36. | hardheaded | Practical and skeptical. |
| 37. | hawk-eyed | Keenly watchful. |
| 38. | hesitant | Slow because of uncertainty. |
| 39. | ill at ease | Uncomfortable and uneasy. |
| 40. | incredulous | Unwilling or unable to believe. |
| 41. | insecure | Not confident or assured. |
| 42. | instinctively wary | Wary by instinct. |
| 43. | jaded | Cynical from experience. |
| 44. | jaundiced | Negatively distrustful in outlook. |
| 45. | judicious | Careful in judgment. |
| 46. | knowing | Experienced and skeptical. |
| 47. | leery | Cautious and suspicious. |
| 48. | mistrustful | Inclined not to trust. |
| 49. | mistrusting | Lacking trust or confidence. |
| 50. | naturally suspicious | Inclined to suspect by nature. |
| 51. | naysaying | Inclined to reject or doubt. |
| 52. | nervous | Uneasy and apprehensive. |
| 53. | nonbelieving | Not accepting as true. |
| 54. | noncommittal | Avoiding commitment from uncertainty. |
| 55. | on edge | Tense from unease. |
| 56. | on guard | Watchful against possible danger. |
| 57. | on the alert | Ready and watchful. |
| 58. | on the lookout | Watching carefully for trouble. |
| 59. | open-eyed | Watchfully aware and cautious. |
| 60. | openly skeptical | Plainly showing doubt. |
| 61. | over-suspicious | Too inclined to suspect. |
| 62. | paranoid | Extremely suspicious. |
| 63. | politic | Prudently cautious. |
| 64. | properly cautious | Appropriately careful. |
| 65. | prudent | Careful about risks. |
| 66. | questioning | Showing doubt or uncertainty. |
| 67. | realistic | Not easily fooled. |
| 68. | reluctant | Unwilling because of doubt. |
| 69. | reserved | Not open or trusting. |
| 70. | reticent | Reserved and guarded. |
| 71. | rightly suspicious | Suspicious for good reason. |
| 72. | risk-averse | Avoiding possible risk. |
| 73. | sardonic | Mocking and cynical. |
| 74. | self-protective | Guarded to avoid harm. |
| 75. | sharp-eyed | Alert and watchful. |
| 76. | skeptical | Doubting claims or motives. |
| 77. | slow to believe | Not believing quickly. |
| 78. | slow to trust | Not trusting quickly. |
| 79. | streetwise | Cautious from practical experience. |
| 80. | suspicious | Inclined to suspect dishonesty. |
| 81. | tentative | Hesitant and uncertain. |
| 82. | tight-lipped | Guarded and silent. |
| 83. | tough-minded | Firmly skeptical and realistic. |
| 84. | trustless | Lacking trust. |
| 85. | unbelieving | Not accepting something as true. |
| 86. | uncertain | Not sure or settled. |
| 87. | unconvinced | Not persuaded or satisfied. |
| 88. | uneasy | Nervous and not reassured. |
| 89. | unpersuaded | Not convinced by evidence. |
| 90. | unsettled | Disturbed by uncertainty. |
| 91. | unsure | Not certain or confident. |
| 92. | untrusting | Not readily giving trust. |
| 93. | vigilant | Carefully alert to danger. |
| 94. | wary | Careful because of possible danger. |
| 95. | watchful | Alert for possible problems. |
| 96. | wide-awake | Alert and watchful. |
| 97. | wily | Craftily cautious. |
| 98. | world-weary | Cynically tired and distrustful. |
| 99. | worldly | Experienced and not naive. |
| 100. | worried | Troubled by concern. |

