| material change(expression, change, alteration, variation, modification) |
| abrupt change(expression, change, alteration, variation, modification) |
| cardinal change(expression, change, alteration, variation, modification) |
| discontinuous variation(expression, change, alteration, variation, modification) |
| essential modification(expression, change, alteration, variation, modification) |
| fundamental change(expression, change, alteration, variation, modification) |
| major breakthrough(expression, change, alteration, variation, modification) |
| major change(expression, change, alteration, variation, modification) |
| major modification(expression, change, alteration, variation, modification) |
| major variation(expression, change, alteration, variation, modification) |
| modification of quality(expression, change, alteration, variation, modification) |
| qualitative change(expression, change, alteration, variation, modification) |
| quality change(expression, change, alteration, variation, modification) |
| revolutionary change(expression, change, alteration, variation, modification) |
| significant change(expression, change, alteration, variation, modification) |
| significant change in attitude(expression, change, alteration, variation, modification) |
| significant change in policy(expression, change, alteration, variation, modification) |
| stepped variation(expression, change, alteration, variation, modification) |
| stepwise change(expression, change, alteration, variation, modification) |
| stepwise variation(expression, change, alteration, variation, modification) |