| No. | Item | Definition |
|---|---|---|
| 1. | airy | light and soft |
| 2. | attentive | quietly focused |
| 3. | awed | quiet from wonder |
| 4. | barely audible | almost too quiet to hear |
| 5. | bated | held in suspenseful quiet |
| 6. | blurred | softened and less distinct |
| 7. | breath-soft | as soft as breath |
| 8. | breathy | spoken with soft airy sound |
| 9. | bridled | controlled and restrained |
| 10. | buttoned-up | reserved and not expressive |
| 11. | calm | peaceful and not noisy |
| 12. | checked | held back or restrained |
| 13. | cloaked | kept partly hidden |
| 14. | close-lipped | keeping silent about something |
| 15. | confidential | meant to be kept quiet |
| 16. | contained | kept under control |
| 17. | covert | kept hidden and quiet |
| 18. | curbed | kept under control |
| 19. | dampened | reduced in sound or intensity |
| 20. | deadened | reduced in sound |
| 21. | delicate | light and gentle |
| 22. | dim | faint or subdued |
| 23. | discreet | careful and restrained |
| 24. | distant | faint as if far away |
| 25. | downplayed | presented with less emphasis |
| 26. | dulled | made less sharp or loud |
| 27. | even | steady and controlled in tone |
| 28. | expectant | quiet with anticipation |
| 29. | faint | barely perceptible in sound |
| 30. | faraway | faint and distant-sounding |
| 31. | feathery | very light and soft |
| 32. | flat | lacking strong expression |
| 33. | gentle | soft and not harsh |
| 34. | guarded | careful and restrained in speech |
| 35. | half-heard | only partly audible |
| 36. | hollow | muted and dull in sound |
| 37. | inaudible | too quiet to hear |
| 38. | inexpressive | showing little outward expression |
| 39. | light | gentle and not heavy |
| 40. | listening | quiet and paying attention |
| 41. | low | not loud in sound |
| 42. | lowered | made quieter in volume |
| 43. | masked | concealed or softened |
| 44. | measured | deliberate and controlled in tone |
| 45. | mild | gentle and not intense |
| 46. | modulated | adjusted to a softer tone |
| 47. | monotone | flat and low in expression |
| 48. | muffled | deadened or softened in sound |
| 49. | mum | silent; saying nothing |
| 50. | murmured | spoken in a low voice |
| 51. | murmurous | softly murmuring |
| 52. | mute | silent and not speaking |
| 53. | muted | softened in sound or tone |
| 54. | noiseless | without noise |
| 55. | obscured | made less clear or noticeable |
| 56. | peace-and-quiet | calm freedom from noise |
| 57. | peaceful | quiet and free from disturbance |
| 58. | placid | calm and undisturbed |
| 59. | prayerful | quietly reverent |
| 60. | private | not public or open |
| 61. | quiet | making little or no sound |
| 62. | quieted | made less noisy |
| 63. | reduced | made less loud or strong |
| 64. | reined-in | kept restrained |
| 65. | remote | faint and far off |
| 66. | reserved | quiet and restrained |
| 67. | restrained | kept controlled and quiet |
| 68. | reticent | reserved and not talkative |
| 69. | reverent | quietly respectful |
| 70. | rustling | making a soft whispering sound |
| 71. | sepulchral | deeply quiet and grave |
| 72. | serene | calm, peaceful, and quiet |
| 73. | silent | making no sound |
| 74. | soft | gentle and low in sound |
| 75. | solemn | serious and quiet |
| 76. | sotto voce | in a deliberately low voice |
| 77. | soundless | without any sound |
| 78. | still | quiet and calm |
| 79. | stilled | made quiet or motionless |
| 80. | subdued | quiet and restrained |
| 81. | taciturn | habitually quiet in speech |
| 82. | tempered | made less intense |
| 83. | tight-lipped | unwilling to speak freely |
| 84. | toned-down | made less strong or loud |
| 85. | toneless | lacking strong vocal tone |
| 86. | tranquil | calm and quiet |
| 87. | unclamorous | not loud or noisy |
| 88. | under-the-breath | spoken very quietly |
| 89. | underplayed | expressed with restraint |
| 90. | understated | expressed in a restrained way |
| 91. | undertone | spoken in a low voice |
| 92. | unemphatic | not forceful or loud |
| 93. | unobtrusive | not noticeable or noisy |
| 94. | unraised | not lifted in volume |
| 95. | veiled | softened or obscured in tone |
| 96. | velvety | smooth and soft in sound |
| 97. | watchful | quietly attentive |
| 98. | whisper-soft | extremely soft and quiet |
| 99. | whispered | spoken very softly |
| 100. | whispery | having a whisper-like sound |