| No. | Item | Definition |
|---|---|---|
| 1. | abandon | leave behind or give up |
| 2. | back off | retreat from responsibility |
| 3. | balk | stop short unwillingly |
| 4. | blow it | ruin your chance |
| 5. | blow the assignment | do the task badly |
| 6. | blow the chance | waste an opportunity |
| 7. | blunder | make a serious mistake |
| 8. | bomb | fail badly |
| 9. | botch | carry out badly |
| 10. | bungle | perform incompetently |
| 11. | cave | give way under pressure |
| 12. | choke | fail under pressure |
| 13. | collapse | fail completely |
| 14. | come a cropper | suffer a sudden failure |
| 15. | come to grief | end badly |
| 16. | come unstuck | go wrong unexpectedly |
| 17. | come up short | fail to meet a need |
| 18. | cop out | avoid doing what is needed |
| 19. | crack | fail under pressure |
| 20. | cut corners | do something cheaply or poorly |
| 21. | default | fail to fulfill an obligation |
| 22. | desert | leave when needed |
| 23. | disappoint | fail to satisfy hopes |
| 24. | do a poor job | perform badly |
| 25. | drag your feet | delay doing something |
| 26. | drop a stitch | make a small mistake |
| 27. | drop the job | fail to continue the work |
| 28. | drop the task | stop handling the task |
| 29. | duck | avoid responsibility or duty |
| 30. | err | be mistaken |
| 31. | evade | avoid dealing with something |
| 32. | fail | not succeed when expected |
| 33. | fall down | fail to do well |
| 34. | fall short | not reach expectations |
| 35. | falter | lose strength or effectiveness |
| 36. | flop | fail badly |
| 37. | flub | make a mistake |
| 38. | forget | fail to remember |
| 39. | founder | fail or break down |
| 40. | freeze | be unable to act |
| 41. | fumble | handle something clumsily |
| 42. | give up | stop trying |
| 43. | go awry | go off course |
| 44. | go wrong | turn out badly |
| 45. | goof | make a foolish mistake |
| 46. | half-do | do carelessly or incompletely |
| 47. | hesitate | pause from uncertainty |
| 48. | lapse | fail through carelessness |
| 49. | leave hanging | fail to finish or support |
| 50. | leave undone | not complete |
| 51. | leave unfinished | fail to complete |
| 52. | let down | fail to support adequately |
| 53. | let the side down | fail your group |
| 54. | let things slide | allow standards to slip |
| 55. | lose focus | stop concentrating properly |
| 56. | lose track | fail to keep up |
| 57. | lose your nerve | become too afraid to act |
| 58. | mail it in | do something halfheartedly |
| 59. | make a blunder | commit a serious mistake |
| 60. | make an error | do something incorrectly |
| 61. | mess up | do something badly |
| 62. | mismanage | handle poorly |
| 63. | misplay | judge or handle badly |
| 64. | miss | fail to catch or do |
| 65. | misstep | make a wrong move |
| 66. | muff | handle badly or miss |
| 67. | neglect | fail to give proper attention |
| 68. | not deliver | fail to provide expected results |
| 69. | not measure up | fail to meet standards |
| 70. | omit | leave out by mistake |
| 71. | overlook | fail to notice or act |
| 72. | pack it in | stop trying or working |
| 73. | phone it in | do something with little effort |
| 74. | procrastinate | delay action unnecessarily |
| 75. | prove unequal | not be capable enough |
| 76. | put a foot wrong | make a mistake |
| 77. | quit | stop before finishing |
| 78. | regress | return to poorer performance |
| 79. | retreat | withdraw from action |
| 80. | run aground | get stuck and fail |
| 81. | screw up | make a bad mistake |
| 82. | shirk | avoid work or duty |
| 83. | shortchange | give less than due |
| 84. | sidestep | avoid handling directly |
| 85. | skimp | do with too little effort |
| 86. | slack off | work less hard |
| 87. | sleepwalk | act without full attention |
| 88. | slip up | make a small mistake |
| 89. | step wrong | make a poor move |
| 90. | succumb | fail under pressure or difficulty |
| 91. | tank | perform very badly |
| 92. | throw in the towel | admit defeat and stop |
| 93. | trip up | make a mistake and fail |
| 94. | underdeliver | provide less than promised |
| 95. | underperform | perform below expectations |
| 96. | walk away | leave a duty behind |
| 97. | wash out | end in failure |
| 98. | waver | become unsteady or uncertain |
| 99. | withdraw | pull back from involvement |
| 100. | yield | give way or give up |
