| No. | Item | Definition |
|---|---|---|
| 1. | absorbed | deeply occupied in thought |
| 2. | abstracted | lost in thought; inattentive |
| 3. | aloof | emotionally distant and detached |
| 4. | antisocial | avoiding social interaction |
| 5. | apprehensive | anxious and hesitant |
| 6. | asocial | not interested in socializing |
| 7. | awkward | socially uncomfortable or uneasy |
| 8. | backward | shy and socially hesitant |
| 9. | bashful | shy and easily embarrassed |
| 10. | blank | showing little expression or feeling |
| 11. | brooding | quietly absorbed in thought |
| 12. | buttoned-up | emotionally restrained and formal |
| 13. | cagey | careful about revealing little |
| 14. | closed | not open or expressive |
| 15. | closemouthed | not revealing thoughts easily |
| 16. | composed | calm and self-controlled |
| 17. | contained | kept under emotional control |
| 18. | controlled | careful and not expressive |
| 19. | cool | emotionally restrained or distant |
| 20. | coy | shy or deliberately reserved |
| 21. | decorous | polite and restrained in behavior |
| 22. | demure | quiet, modest, and reserved |
| 23. | detached | emotionally uninvolved or distant |
| 24. | diffident | modest and lacking self-confidence |
| 25. | distant | not warm or emotionally close |
| 26. | distracted | not fully engaged with others |
| 27. | downcast | sad and lacking animation |
| 28. | elusive | hard to grasp or know |
| 29. | enigmatic | hard to understand or read |
| 30. | expressionless | showing no obvious emotion |
| 31. | formal | stiff and not personally open |
| 32. | gloomy | sad and not expressive |
| 33. | glum | quietly unhappy or gloomy |
| 34. | grave | serious and not expressive |
| 35. | guarded | careful not to reveal much |
| 36. | hard to read | difficult to interpret emotionally |
| 37. | held back | restrained and not fully expressive |
| 38. | hermitlike | living apart from others |
| 39. | hesitant | slow to speak or act |
| 40. | ill at ease | uncomfortable and socially uneasy |
| 41. | impassive | showing little emotion |
| 42. | impenetrable | hard to read emotionally |
| 43. | inhibited | held back in expression |
| 44. | insular | inward-looking and detached |
| 45. | introspective | focused on inner thoughts |
| 46. | introverted | focused inward, not socially expressive |
| 47. | inward-looking | concerned with inner thoughts |
| 48. | kept to himself | stayed private and apart |
| 49. | lonerish | inclined to be alone |
| 50. | low-key | calm and not attention-seeking |
| 51. | measured | careful and restrained in manner |
| 52. | meek | quiet and overly submissive |
| 53. | melancholy | sad and quietly thoughtful |
| 54. | modest | not forward or showy |
| 55. | moody | quietly affected by changing feelings |
| 56. | morose | gloomy and not communicative |
| 57. | mousy | shy and easily overlooked |
| 58. | mum | silent and not forthcoming |
| 59. | mysterious | difficult to know or understand |
| 60. | nervous | anxious and not at ease |
| 61. | noncommittal | avoiding clear personal expression |
| 62. | opaque | hard to understand personally |
| 63. | passive | not assertive or active |
| 64. | pensive | thoughtful and quietly reflective |
| 65. | phlegmatic | calm and unemotional |
| 66. | preoccupied | absorbed and not attentive |
| 67. | prim | overly proper and restrained |
| 68. | private | not open about oneself |
| 69. | proper | correct and somewhat restrained |
| 70. | quiet | not talkative or expressive |
| 71. | reclusive | avoiding company and society |
| 72. | reflective | thoughtful and inward-looking |
| 73. | remote | distant in manner or feeling |
| 74. | reserved | quiet and not outgoing |
| 75. | restrained | controlled and not expressive |
| 76. | reticent | reluctant to speak freely |
| 77. | secretive | inclined to conceal information |
| 78. | self-contained | emotionally controlled and private |
| 79. | shy | nervous and quiet around others |
| 80. | silent | not speaking or expressive |
| 81. | sober | serious and restrained in manner |
| 82. | solemn | serious and quiet in manner |
| 83. | solitary | preferring to be alone |
| 84. | standoffish | cold and unfriendly in manner |
| 85. | taciturn | habitually saying very little |
| 86. | tentative | not confident or assertive |
| 87. | tight-lipped | unwilling to say much |
| 88. | timid | lacking confidence; easily hesitant |
| 89. | timorous | fearful and easily timid |
| 90. | unassertive | not confident or forceful |
| 91. | unassuming | modest and not attention-seeking |
| 92. | uncommunicative | not willing to talk much |
| 93. | uneasy | not relaxed or comfortable |
| 94. | unemotional | not openly showing feelings |
| 95. | unsmiling | serious and not expressive |
| 96. | unsociable | not inclined to socialize |
| 97. | unsocial | not sociable or companionable |
| 98. | wallflower | shy person avoiding attention |
| 99. | wary | cautious and not open |
| 100. | wooden | stiff and lacking natural warmth |
