| No. | Item | Definition |
|---|---|---|
| 1. | aberration | a departure from what is normal |
| 2. | abnormality | something not normal |
| 3. | alteration | a change causing difference |
| 4. | anomaly | something that differs from normal |
| 5. | asymmetry | lack of symmetry |
| 6. | balance | the amount left over |
| 7. | blemish | a small defect |
| 8. | breach | a break in agreement |
| 9. | break | a disruption in continuity |
| 10. | bug | a small fault or error |
| 11. | change | something becoming different |
| 12. | clash | a sharp disagreement |
| 13. | conflict | a state of disagreement |
| 14. | confusion | lack of clarity or order |
| 15. | contradiction | a direct inconsistency |
| 16. | contrast | a striking difference |
| 17. | counterpoint | contrasting element or difference |
| 18. | defect | an imperfection or fault |
| 19. | deficiency | a lack or shortage |
| 20. | deficit | an amount lacking |
| 21. | delta | difference between two amounts |
| 22. | deviation | a departure from what is expected |
| 23. | difference | a lack of sameness |
| 24. | differential | a measurable difference |
| 25. | discordance | a lack of agreement |
| 26. | disparity | an unequal difference |
| 27. | disproportion | a lack of proper relation |
| 28. | dissonance | a clash or inconsistency |
| 29. | distance | a gap or difference |
| 30. | distortion | a change from true form |
| 31. | divergence | a moving apart |
| 32. | diversity | a state of differing |
| 33. | drift | a gradual deviation |
| 34. | error | a mistake causing difference |
| 35. | exception | something not following the rule |
| 36. | excess | more than expected |
| 37. | falsity | the state of being false |
| 38. | fault | an error or defect |
| 39. | flaw | a defect or weakness |
| 40. | friction | strain from disagreement |
| 41. | gap | a noticeable difference or space |
| 42. | glitch | a small unexpected problem |
| 43. | heterogeneity | state of being diverse |
| 44. | hitch | a minor problem or snag |
| 45. | imbalance | a lack of balance |
| 46. | imperfection | a fault or shortcoming |
| 47. | inaccuracy | lack of exactness |
| 48. | incompatibility | lack of ability to fit |
| 49. | incongruity | something out of keeping |
| 50. | inconsistency | a failure to stay consistent |
| 51. | incorrectness | state of being wrong |
| 52. | inequality | a lack of equality |
| 53. | interval | a space or gap |
| 54. | irregularity | something not following the rule |
| 55. | lack of accord | absence of agreement |
| 56. | lack of fit | failure to match properly |
| 57. | lopsidedness | unevenness or imbalance |
| 58. | misalignment | incorrect alignment or match |
| 59. | miscalculation | a wrong calculation |
| 60. | miscount | an incorrect count |
| 61. | mismatch | a lack of correspondence |
| 62. | misreading | a wrong interpretation |
| 63. | misrelation | wrong relation between things |
| 64. | misreport | an inaccurate report |
| 65. | misstatement | an incorrect statement |
| 66. | mistake | something done wrongly |
| 67. | mix-up | a confusion or mistake |
| 68. | nonalignment | failure to line up |
| 69. | noncoincidence | failure to coincide |
| 70. | nonconformity | failure to match a standard |
| 71. | nonuniformity | lack of uniformity |
| 72. | oddity | a strange difference |
| 73. | offset | a balancing difference |
| 74. | opposition | a state of being contrary |
| 75. | otherness | quality of being different |
| 76. | outlier | something far from others |
| 77. | perturbation | a disturbance or irregularity |
| 78. | range | extent of variation |
| 79. | remainder | what is left over |
| 80. | remove | degree of separation |
| 81. | residue | remaining difference after comparison |
| 82. | rift | a split or disagreement |
| 83. | schism | a division from disagreement |
| 84. | separation | a state of being apart |
| 85. | shift | a change in position |
| 86. | shortfall | an amount below what is needed |
| 87. | skew | a distortion or bias |
| 88. | slippage | a falling away from standard |
| 89. | snag | an unexpected problem |
| 90. | split | a division or difference |
| 91. | spread | the extent of difference |
| 92. | swerve | a sudden deviation |
| 93. | tension | strained disagreement or mismatch |
| 94. | twist | an unexpected difference |
| 95. | unevenness | lack of evenness |
| 96. | unlikeness | state of being unlike |
| 97. | variance | a difference from the norm |
| 98. | variation | a change or difference |
| 99. | want of agreement | lack of correspondence |
| 100. | warp | a twist out of shape |