| No. | Item | Definition |
|---|---|---|
| 1. | abortive | failing to produce results |
| 2. | absurd | ridiculously unreasonable or illogical |
| 3. | aimless | without clear purpose or direction |
| 4. | arbitrary | based on whim, not reason |
| 5. | asinine | extremely foolish or stupid |
| 6. | baseless | having no foundation in fact |
| 7. | birdbrained | very silly or stupid |
| 8. | blockheaded | stupid and stubborn |
| 9. | boneheaded | stupid and foolish |
| 10. | brainless | very stupid or thoughtless |
| 11. | capricious | unpredictable and unreasonable |
| 12. | chaotic | completely disordered or confused |
| 13. | clueless | lacking understanding or sense |
| 14. | confused | unclear or mixed up |
| 15. | crackbrained | foolish or eccentric |
| 16. | crazy | extremely foolish or unreasonable |
| 17. | daft | silly or foolish |
| 18. | demented | mad or extremely irrational |
| 19. | deranged | mentally disturbed or irrational |
| 20. | directionless | lacking purpose or direction |
| 21. | disconnected | not logically connected |
| 22. | disjointed | lacking clear connection |
| 23. | disordered | lacking order or coherence |
| 24. | dumb | stupid or foolish |
| 25. | empty | lacking meaning or substance |
| 26. | erratic | unpredictable and irregular |
| 27. | fallacious | based on faulty reasoning |
| 28. | fatuous | foolish and complacently silly |
| 29. | featherbrained | silly and lacking judgment |
| 30. | foolish | showing poor judgment |
| 31. | frantic | wild and unreasoning |
| 32. | fruitless | producing no useful results |
| 33. | futile | incapable of producing useful results |
| 34. | gormless | lacking sense or initiative |
| 35. | gratuitous | unnecessary and unjustified |
| 36. | groundless | having no valid basis |
| 37. | half-baked | poorly thought out |
| 38. | haphazard | lacking planning or order |
| 39. | harebrained | foolish and impractical |
| 40. | hollow | lacking real meaning or value |
| 41. | idiotic | very stupid or foolish |
| 42. | ill-conceived | badly planned or reasoned |
| 43. | illogical | not following sound reasoning |
| 44. | inane | silly and lacking sense |
| 45. | insane | extremely unreasonable or irrational |
| 46. | insensible | unaware or lacking sensation |
| 47. | invalid | not logically sound or acceptable |
| 48. | irrational | not based on reason |
| 49. | jumbled | mixed up and confused |
| 50. | knuckleheaded | stupid or foolish |
| 51. | ludicrous | absurdly unreasonable or silly |
| 52. | lunatic | wildly irrational or foolish |
| 53. | mad | wildly foolish or unreasonable |
| 54. | maniacal | wildly irrational or uncontrolled |
| 55. | meaningless | having no meaning or purpose |
| 56. | mindless | done without thought or reason |
| 57. | misguided | based on poor judgment |
| 58. | motiveless | having no apparent motive |
| 59. | muddled | confused and badly organized |
| 60. | needless | not necessary |
| 61. | nonsensical | making no sense |
| 62. | nugatory | of no value or importance |
| 63. | objectless | having no aim or purpose |
| 64. | otiose | serving no practical purpose |
| 65. | perverse | unreasonably contrary or wrong |
| 66. | pointless | serving no useful purpose |
| 67. | preposterous | contrary to reason or common sense |
| 68. | profitless | bringing no benefit |
| 69. | purposeless | having no clear purpose |
| 70. | rambling | lacking clear order or purpose |
| 71. | random | without clear pattern or purpose |
| 72. | rash | acting without careful thought |
| 73. | reasonless | without reason or justification |
| 74. | reckless | careless of danger or consequences |
| 75. | redundant | unnecessary because excessive |
| 76. | ridiculous | absurd enough to invite mockery |
| 77. | scatterbrained | disorganized and lacking sense |
| 78. | silly | lacking good sense |
| 79. | simpleminded | lacking normal judgment or intelligence |
| 80. | softheaded | foolish or impractical |
| 81. | specious | seeming sound but actually false |
| 82. | stupid | showing a lack of sense |
| 83. | superfluous | more than needed; unnecessary |
| 84. | thickheaded | stupid or slow to understand |
| 85. | thoughtless | done without proper consideration |
| 86. | unconscious | not awake or aware |
| 87. | unfounded | not based on fact |
| 88. | unhinged | mentally unbalanced or irrational |
| 89. | unjustified | not supported by good reason |
| 90. | unreasonable | not guided by fair reason |
| 91. | unsound | not based on good reasoning |
| 92. | unthinking | done without careful thought |
| 93. | useless | having no practical value |
| 94. | vacuous | empty of thought or meaning |
| 95. | vain | producing no useful result |
| 96. | valueless | having no worth or usefulness |
| 97. | wanton | senselessly cruel or destructive |
| 98. | witless | very foolish or stupid |
| 99. | worthless | having no value or use |
| 100. | wrongheaded | stubbornly misguided or unreasonable |