| No. | Item | Definition |
|---|---|---|
| 1. | acute | keenly perceptive or intelligent |
| 2. | adept | highly skilled or proficient |
| 3. | adroit | clever and skillful |
| 4. | agile | quick and adaptable |
| 5. | analytic | good at logical examination |
| 6. | artful | clever and skillful |
| 7. | astute | quick to notice and understand |
| 8. | au fait | familiar and well informed |
| 9. | awake | mentally alert and aware |
| 10. | bookish | fond of study and learning |
| 11. | brainy | very intelligent |
| 12. | bright | intelligent and quick to learn |
| 13. | brilliant | exceptionally intelligent or talented |
| 14. | calculating | cleverly planning advantage |
| 15. | canny | smart and careful |
| 16. | capable | able and competent |
| 17. | clear-headed | thinking clearly and calmly |
| 18. | crackerjack | excellent and skillful |
| 19. | crafty | clever in a sly way |
| 20. | creative | able to produce new ideas |
| 21. | cunning | skillful in a tricky way |
| 22. | curious | eager to know things |
| 23. | cute | clever in an appealing way |
| 24. | deep | showing profound thought |
| 25. | deft | skillful and quick |
| 26. | dexterous | skillful with mind or hands |
| 27. | discerning | good at judging well |
| 28. | educated | having received learning |
| 29. | enterprising | showing initiative and ingenuity |
| 30. | erudite | having extensive knowledge |
| 31. | experienced | having practical knowledge |
| 32. | expert | highly skilled or knowledgeable |
| 33. | fast-thinking | able to think quickly |
| 34. | formidable | impressively capable |
| 35. | forward-thinking | planning with future insight |
| 36. | foxy | clever in a sly way |
| 37. | genius | extremely intelligent person |
| 38. | gifted | naturally talented or intelligent |
| 39. | guileful | showing crafty cleverness |
| 40. | imaginative | full of original ideas |
| 41. | in the know | well informed and aware |
| 42. | incisive | clear, direct, and insightful |
| 43. | ingenious | inventive and skillful |
| 44. | innovative | introducing fresh ideas effectively |
| 45. | inquiring | eager to learn |
| 46. | insightful | showing deep understanding |
| 47. | intelligent | having strong mental ability |
| 48. | inventive | good at creating new ideas |
| 49. | judicious | showing sound judgment |
| 50. | keen | mentally sharp and eager |
| 51. | knowledgeable | well informed and intelligent |
| 52. | learned | highly educated and knowledgeable |
| 53. | lettered | educated and learned |
| 54. | levelheaded | calm and sensible |
| 55. | lively | quick and energetic mentally |
| 56. | logical | reasoning clearly and soundly |
| 57. | masterful | showing great skill and control |
| 58. | mindful | aware and thoughtful |
| 59. | neat | ingeniously effective |
| 60. | nimble-witted | quick in thought |
| 61. | nuanced | showing subtle understanding |
| 62. | observant | quick to notice details |
| 63. | on the ball | alert and competent |
| 64. | oracular | appearing deeply wise |
| 65. | original | fresh and inventive |
| 66. | penetrating | showing sharp understanding |
| 67. | perceptive | good at noticing things |
| 68. | perspicacious | quick to understand things |
| 69. | polished | refined and skillful |
| 70. | practical | sensible and useful |
| 71. | problem-solving | good at finding solutions |
| 72. | proficient | skilled and capable |
| 73. | prudent | wise and careful |
| 74. | quick-witted | fast at understanding and replying |
| 75. | rational | based on reason |
| 76. | ready | prepared and quick |
| 77. | reasonable | fair and sensible |
| 78. | resourceful | good at solving problems |
| 79. | sagacious | having keen judgment |
| 80. | savvy | practical and informed |
| 81. | scholarly | showing deep knowledge |
| 82. | seasoned | experienced and capable |
| 83. | sensible | showing good sense |
| 84. | sharp | mentally quick and alert |
| 85. | shrewd | clever in practical matters |
| 86. | smart | quick-thinking and intelligent |
| 87. | strategic | good at planning effectively |
| 88. | streetwise | smart about real-life situations |
| 89. | switched-on | alert, aware, and intelligent |
| 90. | tactical | skillful in handling situations |
| 91. | thoughtful | showing careful consideration |
| 92. | tricky | cleverly difficult or sly |
| 93. | versed | well informed about something |
| 94. | visionary | showing imaginative foresight |
| 95. | well-informed | having useful knowledge |
| 96. | well-read | widely read and informed |
| 97. | whip-smart | extremely intelligent |
| 98. | wily | clever in a tricky way |
| 99. | wise | showing good judgment and insight |
| 100. | worldly | experienced and shrewd |