reversal

a situation in which two people have exchanged their usual positions or functions

a change in an official course of action

a sudden and very noticeable change

an unexpected and quick change

a quick and significant change in direction

a total change from one state to the opposite

an absolute change, leaving no aspect of the previous state

a change that seems to be a reversal, but may not be

used to specify what has been reversed, e.g., a reversal of the decision

used to specify the area or trend that has changed direction, e.g., a reversal in policy

a situation in which someone's luck or circumstances change from good to bad or vice versa

to have a change as a result

to end with a particular result which is a reversal

to cause a change to happen

to constitute or amount to a significant change

to be a sign of a significant change

to experience a negative change or setback