| No. | Item | Definition |
|---|---|---|
| 1. | acerbic | sharp and harsh |
| 2. | agonizing | causing intense pain |
| 3. | alert | quick to notice |
| 4. | analytic | using logical examination |
| 5. | analytical | skilled at careful analysis |
| 6. | astute | shrewd and perceptive |
| 7. | attentive | paying close attention |
| 8. | aware | conscious and attentive |
| 9. | barbed | sharply hurtful or pointed |
| 10. | biting | sharp and critical |
| 11. | bitter | sharp and unpleasant |
| 12. | blistering | extremely intense or severe |
| 13. | bright | intelligent and quick |
| 14. | brilliant | exceptionally intelligent |
| 15. | brisk | quick and sharp |
| 16. | burning | intensely painful or urgent |
| 17. | canny | shrewd and careful |
| 18. | capable | competent and effective |
| 19. | caustic | severely critical |
| 20. | clear-sighted | having keen understanding |
| 21. | clever | quick to understand |
| 22. | consequential | important and serious |
| 23. | critical | extremely serious or urgent |
| 24. | cutting | sharp and biting |
| 25. | dangerous | likely to cause harm |
| 26. | deep | intense or profound |
| 27. | delicate | easily affected or harmed |
| 28. | desperate | critical and dangerous |
| 29. | dire | extremely serious |
| 30. | discerning | showing good judgment |
| 31. | distressing | causing great pain |
| 32. | dramatic | sudden and impressive |
| 33. | edgy | sharp, tense, or nervous |
| 34. | elevated | raised above normal |
| 35. | emergent | newly arising |
| 36. | episodic | happening in separate episodes |
| 37. | exact | highly precise |
| 38. | excruciating | extremely painful |
| 39. | extreme | very great or severe |
| 40. | fierce | strong and intense |
| 41. | fine | very thin or precise |
| 42. | fitful | occurring in sudden bursts |
| 43. | fresh | newly developed or felt |
| 44. | full-blown | fully developed and severe |
| 45. | gifted | naturally talented or intelligent |
| 46. | grave | very serious |
| 47. | harsh | severe or intense |
| 48. | hazardous | dangerous or risky |
| 49. | heightened | increased or intensified |
| 50. | high-grade | severe or intense |
| 51. | immediate | requiring action at once |
| 52. | incipient | beginning to happen |
| 53. | incisive | keenly analytical or sharp |
| 54. | inflamed | painfully irritated or severe |
| 55. | insightful | showing deep understanding |
| 56. | intelligent | having strong understanding |
| 57. | intense | very strong or extreme |
| 58. | intermittent | stopping and starting |
| 59. | judicious | showing sound judgment |
| 60. | keen | highly perceptive or intense |
| 61. | knowing | showing awareness or insight |
| 62. | life-threatening | dangerously serious |
| 63. | major | serious or important |
| 64. | marked | clearly noticeable |
| 65. | momentous | very important and serious |
| 66. | nascent | just beginning to develop |
| 67. | observant | good at noticing details |
| 68. | painful | causing physical or mental pain |
| 69. | penetrating | sharp and perceptive |
| 70. | perceptive | quick to notice things |
| 71. | piercing | sharp and strongly felt |
| 72. | pointed | sharp in form or expression |
| 73. | precarious | dangerously unstable |
| 74. | pressing | urgent and demanding |
| 75. | pronounced | very noticeable or marked |
| 76. | quick-witted | mentally sharp |
| 77. | rapid | very fast |
| 78. | raw | painfully direct or sore |
| 79. | recent | happening not long ago |
| 80. | risky | involving danger |
| 81. | sensitive | highly responsive |
| 82. | serious | important and severe |
| 83. | severe | serious or harsh |
| 84. | sharp | keen or severe |
| 85. | shrewd | showing sharp judgment |
| 86. | smart | intelligent and quick |
| 87. | stabbing | sudden and sharp |
| 88. | sudden | happening quickly and unexpectedly |
| 89. | tart | sharply critical |
| 90. | thorny | sharp or difficult |
| 91. | thoughtful | showing careful consideration |
| 92. | trenchant | keen and forceful |
| 93. | unstable | not steady or secure |
| 94. | urgent | needing immediate attention |
| 95. | violent | very forceful or intense |
| 96. | vivid | strongly clear or intense |
| 97. | volatile | likely to change suddenly |
| 98. | watchful | carefully observant |
| 99. | weighty | serious and important |
| 100. | worsened | become more severe |