revertible
/ˈrɛvər.tə.bəl/Definitions
1. adjective
capable of being reversed or changed back to a previous state
“The revertible nature of the software allowed users to easily restore their previous settings.”
2. noun
a contract or agreement that allows one party to reverse a transaction or revert to a previous state
“The revertible agreement protected the buyer in case the seller failed to deliver the goods.”