| No. | Item | Definition |
|---|---|---|
| 1. | abrupt | sudden and sharp |
| 2. | alert | quick to notice and act |
| 3. | all set | completely ready |
| 4. | amenable | willing to respond |
| 5. | approaching | coming soon |
| 6. | apt | suitable and fitting |
| 7. | at once | immediately |
| 8. | attentive | watchful and responsive |
| 9. | awake | fully alert |
| 10. | battle-ready | fully prepared for action |
| 11. | becoming | appropriate and fitting |
| 12. | brisk | quick and energetic |
| 13. | businesslike | efficient and direct |
| 14. | close at hand | very near in time |
| 15. | convenient | easy and timely |
| 16. | crisp | quick and efficient |
| 17. | current | happening now |
| 18. | decisive | showing quick firm judgment |
| 19. | disposed | inclined and ready |
| 20. | due | expected at a certain time |
| 21. | eager | keen and ready |
| 22. | efficient | working with little delay |
| 23. | expeditious | done quickly and efficiently |
| 24. | express | very fast |
| 25. | fast-acting | working quickly |
| 26. | fit | suitable and ready |
| 27. | fitting | suitable for the situation |
| 28. | fleet | fast in movement |
| 29. | forthcoming | about to appear |
| 30. | forthwith | immediately and without delay |
| 31. | game | willing to take part |
| 32. | handy | ready and convenient |
| 33. | hasty | done with speed |
| 34. | immediate | occurring at once |
| 35. | immediately | right away |
| 36. | imminent | about to happen |
| 37. | in readiness | prepared for use |
| 38. | in short order | very soon |
| 39. | instant | happening right away |
| 40. | instantaneous | occurring in an instant |
| 41. | instantly | at once |
| 42. | live | currently active |
| 43. | lively | energetic and quick |
| 44. | looming | about to occur |
| 45. | mature | fully ready |
| 46. | meet | suitable or proper |
| 47. | momentary | lasting a very short time |
| 48. | near-instant | almost immediate |
| 49. | nimble | quick and light in movement |
| 50. | on call | ready when needed |
| 51. | on hand | available now |
| 52. | on standby | ready if needed |
| 53. | on the dot | exactly on time |
| 54. | on time | at the scheduled time |
| 55. | opportune | coming at the right time |
| 56. | overnight | happening by next day |
| 57. | pending | awaiting action |
| 58. | peremptory | allowing no delay |
| 59. | poised | ready and balanced |
| 60. | posthaste | with great urgency |
| 61. | prepared | made ready beforehand |
| 62. | pressing | requiring quick attention |
| 63. | primed | fully prepared |
| 64. | promptly | without delay |
| 65. | punctual | arriving exactly on time |
| 66. | quick | done without delay |
| 67. | quickly | at a fast pace |
| 68. | rapid | happening very quickly |
| 69. | rapidly | very fast |
| 70. | ready | prepared to act |
| 71. | real-time | happening as events occur |
| 72. | receptive | open and responsive |
| 73. | responsive | reacting quickly and well |
| 74. | right away | at once |
| 75. | ripe | ready at the right time |
| 76. | scheduled | set for a time |
| 77. | seasonable | appropriate to the time |
| 78. | short-order | done very quickly |
| 79. | snappy | quick and lively |
| 80. | speedy | fast and efficient |
| 81. | straight off | immediately |
| 82. | straightaway | without waiting |
| 83. | sudden | happening quickly and unexpectedly |
| 84. | swift | moving or happening fast |
| 85. | swiftly | with great speed |
| 86. | timed | arranged for a time |
| 87. | timely | happening at the right time |
| 88. | timously | at the proper time |
| 89. | to hand | available for use |
| 90. | trim | neat and ready |
| 91. | upcoming | happening soon |
| 92. | urgent | needing immediate action |
| 93. | usable | ready for use |
| 94. | vigilant | alert to possible need |
| 95. | watchful | carefully observant |
| 96. | well-timed | happening at a suitable time |
| 97. | willing | ready to do something |
| 98. | without delay | immediately |
| 99. | without hesitation | immediately and confidently |
| 100. | zero-lag | with no delay |
