| No. | Item | Definition |
|---|---|---|
| 1. | abstract | concerned with ideas, not things |
| 2. | academic | relating to education or scholarship |
| 3. | acute | sharp in thought or perception |
| 4. | analyst | person who examines ideas carefully |
| 5. | analytical | using careful logical examination |
| 6. | astute | clever and perceptive |
| 7. | authoritative | showing reliable expert knowledge |
| 8. | authority | recognized expert source |
| 9. | bookish | devoted to reading and study |
| 10. | brain | very intelligent person |
| 11. | brainy | very intelligent or clever |
| 12. | bright | quick to learn and understand |
| 13. | brilliant | exceptionally intelligent or talented |
| 14. | cerebral | appealing to thought rather than emotion |
| 15. | clearheaded | thinking clearly and sensibly |
| 16. | clever | quick to understand and learn |
| 17. | cognitive | relating to thinking and understanding |
| 18. | conceptual | relating to ideas or concepts |
| 19. | contemplative | given to quiet deep thought |
| 20. | critical | involving careful judgment and analysis |
| 21. | cultivated | educated and culturally refined |
| 22. | cultured | well educated and refined |
| 23. | curious | eager to know or learn |
| 24. | deep | serious and thoughtful |
| 25. | discerning | showing good judgment and insight |
| 26. | educated | having received substantial learning |
| 27. | egghead | informal highly academic person |
| 28. | enlightened | showing broad understanding and knowledge |
| 29. | erudite | showing deep knowledge and learning |
| 30. | expert | highly skilled or knowledgeable |
| 31. | genius | exceptionally intelligent person |
| 32. | highbrow | cultured and intellectually demanding |
| 33. | humanist | devoted to humane learning |
| 34. | humanistic | concerned with culture and humane learning |
| 35. | incisive | clear and sharply analytical |
| 36. | informed | having relevant knowledge |
| 37. | inquirer | person who seeks knowledge |
| 38. | inquiring | eager to investigate and understand |
| 39. | insightful | showing deep understanding |
| 40. | intellect | person with strong mental ability |
| 41. | intelligent | having strong mental ability |
| 42. | introspective | examining one’s own thoughts |
| 43. | investigative | inclined to examine and inquire |
| 44. | investigator | person who examines carefully |
| 45. | judicious | showing sound judgment |
| 46. | keen | mentally sharp or perceptive |
| 47. | knowledgeable | knowing a lot about something |
| 48. | learned | having much knowledge or education |
| 49. | lettered | educated and literary |
| 50. | levelheaded | calm and sensible in judgment |
| 51. | literary | connected with books and writing |
| 52. | literate | well read and educated |
| 53. | litterateur | person devoted to literature |
| 54. | logical | following clear sound reasoning |
| 55. | lucid | clear in thought or expression |
| 56. | masterly | showing expert skill or knowledge |
| 57. | mastermind | person with exceptional planning intelligence |
| 58. | maven | informal expert or enthusiast |
| 59. | meditative | reflective and thoughtfully focused |
| 60. | mental | relating to the mind |
| 61. | methodical | orderly and systematic in thought |
| 62. | noetic | relating to intellect or thought |
| 63. | pedantic | overly concerned with academic details |
| 64. | penetrating | showing deep understanding |
| 65. | pensive | deeply or seriously thoughtful |
| 66. | perceptive | quick to understand subtle things |
| 67. | philosopher | thinker about fundamental ideas |
| 68. | philosophical | concerned with deep ideas |
| 69. | professional | showing trained skill and knowledge |
| 70. | profound | deep in thought or meaning |
| 71. | rational | based on reason and logic |
| 72. | rationalist | person guided by reason |
| 73. | reasonable | guided by sense and logic |
| 74. | reasoning | using logic to form judgments |
| 75. | refined | cultured and polished |
| 76. | reflective | inclined to deep thought |
| 77. | rigorous | thorough and intellectually exacting |
| 78. | ruminative | inclined to prolonged deep thought |
| 79. | sage | wise and deeply knowledgeable |
| 80. | sapient | wise or possessing sound judgment |
| 81. | scholarly | connected with serious academic study |
| 82. | serious-minded | thoughtful and earnest |
| 83. | sharp | mentally quick and perceptive |
| 84. | shrewd | showing sharp practical understanding |
| 85. | smart | quick and able in thinking |
| 86. | sophisticated | showing refined knowledge and judgment |
| 87. | speculative | involving abstract reasoning or conjecture |
| 88. | studious | fond of careful study |
| 89. | theologian | scholar of religious thought |
| 90. | theoretical | concerned with theory and ideas |
| 91. | theorist | person concerned with abstract ideas |
| 92. | thinker | person who thinks deeply |
| 93. | thinking | given to thought and reflection |
| 94. | thought-out | carefully considered |
| 95. | thoughtful | showing careful serious thought |
| 96. | urbane | cultured, polished, and refined |
| 97. | well-educated | having a strong education |
| 98. | well-read | having read many books |
| 99. | well-reasoned | supported by sound logic |
| 100. | wise | having good judgment and knowledge |