It could be argued that a political orientation that favors social progress by reform and changing laws rather than by revolution is called "liberalism," although it should be noted that some extreme liberals can be in favor of revolution as well.
Answer:
Depreciate in value, be a weaker currency
Explanation:
Depreciation in value means that it is going down in value. you can buy less for the same amount of money today that you could buy last year for example.
Being a weaker currency means that in comparison to other currencies around the world the weaker one has less value. So today 1 USD is worth 0.77 British pounds, but if reversed then the pound would be a weaker currency.
An incumbent is a current officeholder, running for re-election.