| big change |
| material change(expression, change, alteration, variation, modification) |
| revolutionary change(noun, expression, change, alteration, variation) |
| abrupt change(expression, change, alteration, variation, modification) |
| cardinal change(expression, change, alteration, variation, modification) |
| cataclysm(noun, disorder, disturbance, turmoil, tumult) |
| catastrophe(noun, disorder, disturbance, turmoil, tumult) |
| clamor(noun, disorder, disturbance, turmoil, tumult) |
| commotion(noun, disorder, disturbance, turmoil, tumult) |
| conversion(noun, upheaval) |
| convulsion(noun, disorder, disturbance, turmoil, tumult) |
| disaster(noun, disorder, disturbance, turmoil, tumult) |
| discontinuous variation(expression, change, alteration, variation, modification) |
| disruption(noun, disorder, disturbance, turmoil, tumult) |
| eruption(noun, disorder, disturbance, turmoil, tumult) |
| essential modification(expression, change, alteration, variation, modification) |
| explosion(noun, disorder, disturbance, turmoil, tumult) |
| ferment(noun, disorder, disturbance, turmoil, tumult) |
| fundamental change(expression, change, alteration, variation, modification) |
| major breakthrough(expression, change, alteration, variation, modification) |