| No. | Item | Definition |
|---|---|---|
| 1. | acute | keen in perception or intellect |
| 2. | adaptable | able to adjust intelligently |
| 3. | adept | highly skilled and clever |
| 4. | agile | quick and adaptable in thought |
| 5. | alert | quick to notice and think |
| 6. | analytical | skilled at logical examination |
| 7. | articulate | able to express ideas clearly |
| 8. | astute | shrewd and quick to understand |
| 9. | balanced | showing sound judgment |
| 10. | book-smart | knowledgeable from formal learning |
| 11. | brainy | very intelligent |
| 12. | bright | quick-witted and clever |
| 13. | brilliant | exceptionally intelligent |
| 14. | canny | clever and careful |
| 15. | cerebral | intellectual rather than emotional |
| 16. | clear-headed | thinking clearly and sensibly |
| 17. | clever | good at thinking and solving |
| 18. | cogent | clear, logical, and convincing |
| 19. | coherent | logical and well organized |
| 20. | commonsensical | showing practical good sense |
| 21. | contemplative | given to deep thought |
| 22. | crafty | clever in a tricky way |
| 23. | curious | eager to learn or know |
| 24. | deep | showing profound understanding |
| 25. | deliberate | careful and thoughtful |
| 26. | discerning | good at judging well |
| 27. | down-to-earth | sensible and realistic |
| 28. | educated | having received substantial education |
| 29. | enterprising | showing initiative and cleverness |
| 30. | erudite | having extensive learning |
| 31. | experienced | knowledgeable from long practice |
| 32. | expert | having great knowledge or skill |
| 33. | farseeing | good at anticipating outcomes |
| 34. | foresighted | planning wisely for the future |
| 35. | formidable | impressively capable and intelligent |
| 36. | foxy | clever and sly |
| 37. | genius | a person of extraordinary intellect |
| 38. | gifted | naturally talented and intelligent |
| 39. | highbrow | intellectual and cultured |
| 40. | incisive | clear, sharp, and insightful |
| 41. | ingenious | clever and inventive |
| 42. | inquiring | eager to learn and understand |
| 43. | inquisitive | curious and eager to know |
| 44. | insightful | showing deep understanding |
| 45. | intellectual | highly rational and thoughtful |
| 46. | intelligent | having strong mental ability |
| 47. | inventive | good at creating new ideas |
| 48. | investigative | good at examining facts closely |
| 49. | judicious | showing wise judgment |
| 50. | keen | mentally sharp and eager |
| 51. | knowledgeable | well informed and educated |
| 52. | learned | having deep knowledge from study |
| 53. | level-headed | calm and sensible in thinking |
| 54. | literate | well educated and informed |
| 55. | logical | reasoning clearly and sensibly |
| 56. | lucid | clear and easy to understand |
| 57. | measured | calm and thoughtful |
| 58. | meditative | inclined to thoughtful reflection |
| 59. | methodical | orderly and systematic in thought |
| 60. | nimble-minded | mentally quick and agile |
| 61. | no fool | clever and not easily deceived |
| 62. | nuanced | showing subtle understanding |
| 63. | observant | quick to notice details |
| 64. | on the ball | alert and competent |
| 65. | on the uptake | quick to understand |
| 66. | original | fresh and inventive in thought |
| 67. | penetrating | showing deep insight |
| 68. | perceptive | quick to notice and understand |
| 69. | perspicacious | quick to understand things |
| 70. | philosophical | thoughtful and wise |
| 71. | precocious | intelligent at an unusually young age |
| 72. | probing | searching deeply for understanding |
| 73. | profound | showing great intellectual depth |
| 74. | prudent | wise and careful in decisions |
| 75. | questioning | inclined to think critically |
| 76. | quick-witted | fast in understanding and replying |
| 77. | rational | based on reason and logic |
| 78. | realistic | seeing things as they are |
| 79. | reasonable | sensible and fair-minded |
| 80. | reflective | given to serious thought |
| 81. | resourceful | good at solving problems |
| 82. | sage | very wise |
| 83. | savvy | having practical understanding |
| 84. | scientific | using careful logical methods |
| 85. | sensible | practical and reasonable |
| 86. | sharp | mentally quick and alert |
| 87. | shrewd | showing sharp practical intelligence |
| 88. | smart | quick to learn and understand |
| 89. | sound | showing good judgment |
| 90. | strategic | good at planning intelligently |
| 91. | street-smart | wise in practical situations |
| 92. | tactical | skilled in practical planning |
| 93. | thoughtful | showing careful thinking |
| 94. | visionary | having imaginative insight |
| 95. | well-read | widely informed by reading |
| 96. | whip-smart | extremely intelligent and quick |
| 97. | wily | clever in a crafty way |
| 98. | wise | showing good judgment and insight |
| 99. | with it | aware and mentally sharp |
| 100. | worldly | experienced and practical |