| No. | Item | Definition |
|---|---|---|
| 1. | absurd | wildly unreasonable or silly |
| 2. | adolescent | teenage; not fully mature |
| 3. | asinine | very foolish or stupid |
| 4. | babyish | like a baby; immature |
| 5. | bad-mannered | showing poor manners |
| 6. | blockheaded | stupid; slow to understand |
| 7. | boneheaded | stupid and stubborn |
| 8. | boorish | rude and insensitive |
| 9. | brainless | very foolish; stupid |
| 10. | bratty | behaving like a brat |
| 11. | buffoonish | like a buffoon; silly |
| 12. | callow | inexperienced and immature |
| 13. | careless | not careful; thoughtless |
| 14. | cheesy | tastelessly silly |
| 15. | churlish | rude and ill-mannered |
| 16. | coarse | rough; lacking refinement |
| 17. | corny | overly simple and silly |
| 18. | crass | grossly insensitive; crude |
| 19. | crude | rough and lacking refinement |
| 20. | daft | silly or foolish |
| 21. | dim-witted | not very intelligent |
| 22. | disorderly | lacking order or discipline |
| 23. | ditzy | silly and scatterbrained |
| 24. | dorky | awkwardly silly |
| 25. | dumb | stupid; lacking sense |
| 26. | empty-headed | lacking intelligence or sense |
| 27. | farical | like a farce; absurd |
| 28. | fatuous | silly and self-satisfied |
| 29. | flighty | not serious; irresponsible |
| 30. | foolish | lacking good sense |
| 31. | frivolous | not serious; trivial |
| 32. | giddy | silly and excitable |
| 33. | giggly | prone to silly giggling |
| 34. | goofy | silly in a childish way |
| 35. | green | inexperienced; not mature |
| 36. | gross | crude and unpleasant |
| 37. | heedless | not paying attention |
| 38. | huffy | easily offended; sulky |
| 39. | idiotic | extremely foolish |
| 40. | ill-mannered | lacking good manners |
| 41. | imbecilic | very foolish; stupid |
| 42. | immature | not fully grown emotionally |
| 43. | impolite | not polite; rude |
| 44. | impulsive | acting without thinking |
| 45. | inane | silly and empty |
| 46. | inconsiderate | not considerate; selfish |
| 47. | inexperienced | lacking experience; naive |
| 48. | infantile | like an infant; immature |
| 49. | insensitive | not sensitive to others |
| 50. | juvenile | young and immature |
| 51. | kid-like | like a kid; immature |
| 52. | laughable | so silly it invites laughter |
| 53. | loutish | rude and clumsy |
| 54. | ludicrous | ridiculously silly |
| 55. | mindless | without thought or sense |
| 56. | mischievous | playfully causing trouble |
| 57. | moronic | very stupid |
| 58. | naive | innocently inexperienced |
| 59. | nerdy | socially awkward; juvenile |
| 60. | oafish | clumsy and stupidly rude |
| 61. | overgrown | adult behaving like a child |
| 62. | petulant | childishly sulky or rude |
| 63. | pouty | sulking like a child |
| 64. | prankish | given to childish pranks |
| 65. | preposterous | completely absurd |
| 66. | puerile | silly and immature |
| 67. | rash | hasty and ill-considered |
| 68. | reckless | careless of consequences |
| 69. | ridiculous | deserving mockery; silly |
| 70. | rowdy | noisy and disorderly |
| 71. | rude | offensively impolite |
| 72. | scatterbrained | disorganized and inattentive |
| 73. | schoolboyish | like a schoolboy; immature |
| 74. | shallow | lacking depth or seriousness |
| 75. | silly | lacking seriousness or sense |
| 76. | simple-minded | lacking good judgment |
| 77. | snickering | silly and immaturely amused |
| 78. | spoiled | overindulged; badly behaved |
| 79. | stupid | showing lack of intelligence |
| 80. | superficial | lacking depth; shallow |
| 81. | tacky | in poor taste; crude |
| 82. | tactless | lacking sensitivity or tact |
| 83. | tantrumy | prone to tantrums |
| 84. | teenage | like a teenager; immature |
| 85. | thick | stupid; slow to understand |
| 86. | thoughtless | not considerate of others |
| 87. | uncouth | crude and unrefined |
| 88. | underdeveloped | not fully developed |
| 89. | unformed | not fully developed |
| 90. | uninitiated | not yet experienced |
| 91. | unrefined | lacking polish or maturity |
| 92. | unripe | not yet mature |
| 93. | unseasoned | lacking experience and maturity |
| 94. | unsophisticated | lacking worldly experience |
| 95. | untrained | not trained; inexperienced |
| 96. | unworldly | not experienced in life |
| 97. | vacuous | empty-headed; silly |
| 98. | vulgar | lacking taste or refinement |
| 99. | whiny | complaining in a childish way |
| 100. | wild | uncontrolled and unruly |