| No. | Item | Definition |
|---|---|---|
| 1. | absurd | wildly unreasonable or foolish |
| 2. | alogical | not governed by logic |
| 3. | antirational | opposed to reason |
| 4. | arational | outside the use of reason |
| 5. | arbitrary | based on whim, not reason |
| 6. | asinine | extremely foolish or senseless |
| 7. | baseless | having no reasonable basis |
| 8. | brainless | very foolish or stupid |
| 9. | capricious | changing without reasonable cause |
| 10. | chimerical | wildly unrealistic or fanciful |
| 11. | clouded | made unclear or unreasonable |
| 12. | cockamamie | absurd or implausible |
| 13. | confused | lacking clear reasoned order |
| 14. | contradictory | containing opposing ideas |
| 15. | crackpot | wildly unreasonable or eccentric |
| 16. | crazy | wildly unreasonable or senseless |
| 17. | daft | foolish or unreasonable |
| 18. | delusional | believing things despite reality |
| 19. | demented | wildly irrational or disturbed |
| 20. | deranged | mentally disturbed or wildly unreasonable |
| 21. | disjointed | not logically connected |
| 22. | disordered | lacking logical order |
| 23. | dreamy | unrealistic or impractical |
| 24. | dubious | not fully believable or sound |
| 25. | emotional | driven more by feelings than reason |
| 26. | empty-headed | lacking sensible thought |
| 27. | erratic | unpredictable and not reasoned |
| 28. | fallacious | based on faulty reasoning |
| 29. | fantastic | wildly unrealistic or improbable |
| 30. | far-fetched | unlikely and hard to believe |
| 31. | fatuous | foolishly silly or pointless |
| 32. | faulty | containing errors in reasoning |
| 33. | flawed | imperfect in reasoning or basis |
| 34. | foolish | showing poor judgment |
| 35. | futile | pointless and ineffective |
| 36. | groundless | without reasonable grounds |
| 37. | half-baked | poorly thought out |
| 38. | harebrained | recklessly foolish or impractical |
| 39. | hasty | done too quickly to be sensible |
| 40. | heedless | careless and lacking thought |
| 41. | idiotic | extremely foolish or senseless |
| 42. | ill-advised | not sensible or recommended |
| 43. | ill-conceived | badly planned or reasoned |
| 44. | ill-considered | not thought through properly |
| 45. | illogical | not following sound logic |
| 46. | imbecilic | extremely stupid or foolish |
| 47. | imprudent | lacking sensible caution |
| 48. | impulsive | acting without forethought |
| 49. | inane | silly and lacking sense |
| 50. | invalid | not logically sound |
| 51. | kooky | strangely foolish or eccentric |
| 52. | ludicrous | absurd in an obvious way |
| 53. | lunatic | wildly unreasonable or crazy |
| 54. | mad | wildly foolish or unreasonable |
| 55. | meaningless | having no clear sense |
| 56. | mindless | showing no sensible thought |
| 57. | misguided | based on mistaken judgment |
| 58. | misjudged | based on poor judgment |
| 59. | moronic | very foolish or stupid |
| 60. | muddled | confused and poorly reasoned |
| 61. | nonrational | not based on rational thought |
| 62. | nonsensical | making no real sense |
| 63. | nutty | foolish or wildly unreasonable |
| 64. | overemotional | excessively ruled by feelings |
| 65. | paranoid | unreasonably suspicious or fearful |
| 66. | perverse | unreasonably contrary or wrongheaded |
| 67. | pointless | having no sensible purpose |
| 68. | preposterous | contrary to reason or common sense |
| 69. | purposeless | without a reasonable aim |
| 70. | questionable | doubtful in reason or validity |
| 71. | quixotic | unrealistically idealistic or impractical |
| 72. | rambling | lacking clear logical direction |
| 73. | rash | acting without sensible caution |
| 74. | reasonless | without reason or cause |
| 75. | reckless | careless of reason or consequences |
| 76. | ridiculous | too unreasonable to be taken seriously |
| 77. | self-contradictory | contradicting itself |
| 78. | senseless | having no reasonable purpose |
| 79. | shaky | not firmly supported by reason |
| 80. | silly | foolish or lacking sense |
| 81. | specious | seeming reasonable but false |
| 82. | stupid | showing very poor sense |
| 83. | subrational | below the level of reason |
| 84. | thoughtless | lacking careful consideration |
| 85. | unfounded | not supported by evidence |
| 86. | unhinged | not mentally or reasonably balanced |
| 87. | unjustified | not reasonably supported |
| 88. | unreasonable | not guided by reason |
| 89. | unsound | not based on good reasoning |
| 90. | unsubstantiated | not proven or supported |
| 91. | unsupported | not backed by evidence |
| 92. | untenable | not defensible by reason |
| 93. | unthinking | done without careful thought |
| 94. | unwise | not sensible or prudent |
| 95. | vacuous | lacking intelligent sense |
| 96. | wacky | silly or wildly unreasonable |
| 97. | weak | not logically convincing |
| 98. | witless | foolish and lacking judgment |
| 99. | wrongheaded | stubbornly mistaken or unreasonable |
| 100. | zany | comically foolish or absurd |
