| No. | Item | Definition |
|---|---|---|
| 1. | alleged | claimed without proof |
| 2. | apparent | seeming to be real |
| 3. | apprehensive about | anxious and doubtful about |
| 4. | assume | to take as true |
| 5. | be doubtful of | to lack confidence in |
| 6. | be skeptical of | to doubt the truth of |
| 7. | be suspicious of | to distrust or doubt |
| 8. | be wary of | to regard cautiously |
| 9. | believable | seeming true or possible |
| 10. | believe | to accept as likely |
| 11. | betray | reveal unintentionally |
| 12. | call into question | challenge as doubtful |
| 13. | cast doubt on | make less believable |
| 14. | conceivable | possible to imagine |
| 15. | concerned about | worried or doubtful about |
| 16. | conjectural | based on uncertain inference |
| 17. | conjecture | to form an uncertain conclusion |
| 18. | count as | treat as being |
| 19. | credible | able to be believed |
| 20. | deem | to regard as likely |
| 21. | disbelieve | refuse to believe |
| 22. | distrust | to have no confidence in |
| 23. | doubt | to think may be true |
| 24. | doubtful | not established as true |
| 25. | dubious about | uncertain or doubtful about |
| 26. | entertain doubts | have uncertain thoughts |
| 27. | eye warily | look at distrustfully |
| 28. | fancy | to suppose without certainty |
| 29. | feel | to have an intuition |
| 30. | figure | to conclude or suppose |
| 31. | fishy | seeming dishonest or wrong |
| 32. | flag as | identify as problematic |
| 33. | gather | to infer or conclude |
| 34. | guess | to form an uncertain opinion |
| 35. | half-believe | believe only partly |
| 36. | harbor doubts | keep private doubts |
| 37. | have misgivings | to feel uneasy doubt |
| 38. | have reservations | feel some doubt |
| 39. | hint at | suggest indirectly |
| 40. | imaginable | possible to think of |
| 41. | imagine | to think might be so |
| 42. | imply | suggest without stating |
| 43. | indicate | point to as likely |
| 44. | infer | to conclude from evidence |
| 45. | insinuate | suggest in a sly way |
| 46. | intimate | suggest indirectly |
| 47. | intuit | to know by instinct |
| 48. | leery of | cautious and distrustful of |
| 49. | likely | probably true or real |
| 50. | look askance at | regard with suspicion |
| 51. | look on with doubt | regard skeptically |
| 52. | make out | interpret or discern |
| 53. | mark as | identify as having status |
| 54. | misdoubt | to suspect or distrust |
| 55. | mistrust | to feel distrust toward |
| 56. | mistrustful of | showing lack of trust |
| 57. | not buy | not believe or accept |
| 58. | nurse doubts | continue feeling doubt |
| 59. | open to doubt | not firmly established |
| 60. | ostensible | appearing to be true |
| 61. | peg as | identify or classify as |
| 62. | plausible | seeming reasonable or probable |
| 63. | point to | indicate as likely |
| 64. | possible | able to be true |
| 65. | presume | to suppose beforehand |
| 66. | presumed | accepted as likely true |
| 67. | probable | likely to be true |
| 68. | putative | commonly thought to be |
| 69. | question | to doubt or challenge |
| 70. | questionable | doubtful or uncertain |
| 71. | raise doubts about | cause uncertainty about |
| 72. | read as | interpret as meaning |
| 73. | read into | infer extra meaning |
| 74. | reckon | to think or suppose |
| 75. | regard as | consider to be |
| 76. | regard with suspicion | view distrustfully |
| 77. | seeming | appearing to be so |
| 78. | sense | to feel intuitively |
| 79. | smell a rat | to sense something wrong |
| 80. | speculate | to form ideas without proof |
| 81. | speculative | based on guesswork |
| 82. | suppose | to think is likely |
| 83. | supposed | generally assumed or believed |
| 84. | surmise | to infer without certainty |
| 85. | tag as | label or identify as |
| 86. | take for | regard as likely |
| 87. | take issue with | express doubt about |
| 88. | take to be | regard as being |
| 89. | think | to believe tentatively |
| 90. | treat as doubtful | consider uncertain or false |
| 91. | uncertain | not known for sure |
| 92. | unconfirmed | not yet verified |
| 93. | under suspicion | considered possibly guilty |
| 94. | uneasy about | feeling doubtful about |
| 95. | unproven | not demonstrated as true |
| 96. | unsubstantiated | not supported by evidence |
| 97. | unverified | not checked for truth |
| 98. | view as | consider in a certain way |
| 99. | wary of | watchful and cautious about |
| 100. | wonder | to think uncertainly about |

