| No. | Item | Definition |
|---|---|---|
| 1. | abrupt | sudden and unprepared |
| 2. | accidental | happening without intention |
| 3. | ad hoc | created for immediate need |
| 4. | ad-lib | made up on the spot |
| 5. | ad-libbed | improvised in the moment |
| 6. | artless | simple and without affectation |
| 7. | automatic | done without conscious planning |
| 8. | autonomous | acting independently on its own |
| 9. | candid | honest and unguarded |
| 10. | casual | relaxed and unplanned |
| 11. | chance | occurring without planning |
| 12. | direct | straightforward and unforced |
| 13. | easy | natural and effortless |
| 14. | effortless | appearing natural and easy |
| 15. | effusive | expressed openly and freely |
| 16. | extemporaneous | spoken or done without preparation |
| 17. | fluid | smooth and naturally developing |
| 18. | forthcoming | ready and open in response |
| 19. | fortuitous | happening by chance |
| 20. | frank | open and unprepared |
| 21. | free | not constrained or forced |
| 22. | freestyle | done freely without set plan |
| 23. | freewheeling | loose and unplanned |
| 24. | fresh | new and uncontrived |
| 25. | from the hip | spoken bluntly without planning |
| 26. | frontal | direct and immediate |
| 27. | genuine | natural and sincere |
| 28. | gut-level | based on instinctive feeling |
| 29. | hardwired | deeply natural or automatic |
| 30. | hasty | done too quickly |
| 31. | headlong | done with reckless haste |
| 32. | heartfelt | coming naturally from emotion |
| 33. | honest | open and not calculated |
| 34. | immediate | happening without delay or planning |
| 35. | impromptu | done without prior planning |
| 36. | improvisatory | characterized by improvisation |
| 37. | improvised | created without advance planning |
| 38. | impulsive | acting on sudden urges |
| 39. | independent | acting on one’s own |
| 40. | informal | casual and not rigidly planned |
| 41. | instinct-driven | guided by instinct |
| 42. | instinctive | guided by natural feeling |
| 43. | intuitive | based on immediate understanding |
| 44. | knee-jerk | automatic and unthinking |
| 45. | loose | not tightly controlled |
| 46. | naive | natural and uncalculated |
| 47. | natural | arising without artificial effort |
| 48. | of itself | happening naturally on its own |
| 49. | off-the-cuff | said without preparation |
| 50. | off-the-top | said from immediate thought |
| 51. | offhand | said or done without preparation |
| 52. | on impulse | because of sudden desire |
| 53. | on-the-spot | done immediately when needed |
| 54. | open | free and unguarded |
| 55. | organic | developing naturally, not forced |
| 56. | overflowing | coming out freely and naturally |
| 57. | precipitate | done too quickly or rashly |
| 58. | random | without plan or pattern |
| 59. | rash | acting without careful thought |
| 60. | raw | unpolished and immediate |
| 61. | reactive | responding immediately to events |
| 62. | ready | quick and natural in response |
| 63. | reflexive | automatic and immediate |
| 64. | responsive | reacting naturally and quickly |
| 65. | rough-and-ready | practical and unprepared |
| 66. | seat-of-the-pants | guided by instinct, not planning |
| 67. | self-arising | coming up by itself |
| 68. | self-generated | arising from within |
| 69. | self-initiated | started by oneself |
| 70. | self-moving | moving or arising by itself |
| 71. | self-starting | beginning on its own |
| 72. | snap | done very quickly and instinctively |
| 73. | sparked | set off suddenly |
| 74. | spur-of-the-moment | done on sudden impulse |
| 75. | sudden | happening unexpectedly and quickly |
| 76. | unaffected | natural and not pretended |
| 77. | unanticipated | not expected beforehand |
| 78. | unarranged | not planned beforehand |
| 79. | unbidden | arising without being invited |
| 80. | uncontrived | not artificially arranged |
| 81. | undesigned | not intentionally planned |
| 82. | unexpected | not foreseen or planned |
| 83. | unforced | natural and not contrived |
| 84. | unguarded | not carefully controlled |
| 85. | uninhibited | free from restraint |
| 86. | unlabored | done without strain or planning |
| 87. | unplanned | not arranged in advance |
| 88. | unpremeditated | not thought out beforehand |
| 89. | unprompted | not caused by prompting |
| 90. | unrehearsed | not practiced beforehand |
| 91. | unscripted | not planned word for word |
| 92. | unselfconscious | natural and not awkward |
| 93. | unstudied | natural and not deliberate |
| 94. | unthinking | done without much thought |
| 95. | voluble | speaking freely and readily |
| 96. | volunteered | offered without prompting |
| 97. | without planning | without advance arrangement |
| 98. | without prompting | without being urged |
| 99. | without rehearsal | without prior practice |
| 100. | without thinking | without prior thought |