| No. | Item | Definition |
|---|---|---|
| 1. | absurd | ridiculously unreasonable or foolish |
| 2. | addled | confused and foolish |
| 3. | addlepated | confused or silly-minded |
| 4. | asinine | extremely silly or stupid |
| 5. | birdbrained | silly or stupid |
| 6. | bizarre | strangely foolish or absurd |
| 7. | blockheaded | stupid and slow to understand |
| 8. | boneheaded | stupid or foolish |
| 9. | brainless | very stupid or thoughtless |
| 10. | bullheaded | stubbornly foolish or obstinate |
| 11. | childish | immature and silly |
| 12. | clueless | lacking understanding or awareness |
| 13. | cockamamie | absurd or ridiculous |
| 14. | crackpot | wildly foolish or eccentric |
| 15. | crazy | wildly unreasonable or foolish |
| 16. | credulous | too ready to believe |
| 17. | daft | silly or not sensible |
| 18. | dense | slow to understand; foolish |
| 19. | dim | not quick or intelligent |
| 20. | dreamy | unrealistic or impractically idealistic |
| 21. | dumb | showing little intelligence or sense |
| 22. | empty-headed | silly and lacking intelligence |
| 23. | fantastical | unrealistic and foolishly fanciful |
| 24. | far-fetched | unlikely and not sensible |
| 25. | fatuous | smugly silly or pointless |
| 26. | featherbrained | silly and lacking judgment |
| 27. | foolhardy | recklessly lacking good judgment |
| 28. | frivolous | silly and lacking seriousness |
| 29. | green | inexperienced and naive |
| 30. | gullible | easily fooled or deceived |
| 31. | half-baked | poorly thought out |
| 32. | harebrained | wildly foolish or impractical |
| 33. | hasty | done too quickly and unwisely |
| 34. | heedless | not paying proper attention |
| 35. | idiotic | very stupid or foolish |
| 36. | ill-advised | not sensible or wise |
| 37. | illogical | not reasonable or sensible |
| 38. | imbecilic | extremely stupid or foolish |
| 39. | imprudent | not wise or careful |
| 40. | impulsive | acting without enough thought |
| 41. | incautious | not cautious or careful |
| 42. | indiscreet | lacking careful judgment |
| 43. | injudicious | showing poor judgment |
| 44. | irrational | not based on reason |
| 45. | juvenile | immature or childish |
| 46. | kooky | eccentric and foolish |
| 47. | laughable | absurd enough to invite laughter |
| 48. | loopy | silly or slightly crazy |
| 49. | ludicrous | so foolish as to be laughable |
| 50. | lunatic | wildly foolish or crazy |
| 51. | madcap | recklessly or wildly foolish |
| 52. | meaningless | without sense or purpose |
| 53. | mindless | done without thought or sense |
| 54. | misguided | based on poor judgment |
| 55. | misjudged | based on wrong judgment |
| 56. | mistaken | wrong in judgment or belief |
| 57. | moronic | very stupid or foolish |
| 58. | myopic | lacking long-term judgment |
| 59. | naive | too innocent or trusting |
| 60. | nonsensical | making no practical sense |
| 61. | nutty | crazy or foolish |
| 62. | obtuse | slow to understand or perceive |
| 63. | off-the-wall | unusual and foolishly odd |
| 64. | outlandish | strangely foolish or excessive |
| 65. | outrageous | shockingly unreasonable or foolish |
| 66. | pigheaded | stubbornly foolish |
| 67. | pointless | serving no sensible purpose |
| 68. | poorly judged | showing bad judgment |
| 69. | poorly thought out | not planned or reasoned well |
| 70. | preposterous | absurdly unreasonable or foolish |
| 71. | puerile | childishly silly or trivial |
| 72. | quixotic | unrealistically idealistic or impractical |
| 73. | rash | too hasty and unwise |
| 74. | reckless | careless of consequences |
| 75. | ridiculous | absurd and deserving mockery |
| 76. | risible | laughably silly or absurd |
| 77. | scatterbrained | disorganized and foolishly inattentive |
| 78. | senseless | without good sense or purpose |
| 79. | shortsighted | lacking foresight or prudence |
| 80. | silly | showing a lack of sense |
| 81. | simple | naive or not very clever |
| 82. | simpleminded | showing limited understanding |
| 83. | stupid | not showing intelligence or sense |
| 84. | thick | slow to understand; stupid |
| 85. | thickheaded | stupid or slow to understand |
| 86. | thoughtless | lacking careful consideration |
| 87. | unrealistic | not sensible or practical |
| 88. | unreasonable | not guided by reason |
| 89. | unreasoned | not based on reason |
| 90. | unreflective | not thoughtfully considered |
| 91. | unsound | not sensible or reasonable |
| 92. | unthinking | not considering consequences |
| 93. | unwise | lacking good judgment |
| 94. | vacuous | empty of thought or intelligence |
| 95. | wacky | silly, odd, or irrational |
| 96. | witless | lacking intelligence or judgment |
| 97. | woodenheaded | stupid or dense |
| 98. | wrong-minded | guided by poor judgment |
| 99. | wrongheaded | stubbornly wrong or misguided |
| 100. | zany | comically foolish or eccentric |
