adjective
revocable
REV-uh-kuh-buhl/rˈɛvʌkʌbʌl/
Capable of being officially canceled or withdrawn.
The visitor's access is revocable through the administrator's control switch.

Etymology
Something revocable can be “called back.” The image of recall applies to withdrawing a decision or permission, so that it no longer remains in force.
In context
A revocable trust means he could take back control at any time. He received detailed financial reports from that trust throughout his presidency. And critically, he continued to
More examples
- Your authorization remains revocable at any time.
- She places her assets in a revocable trust.
- Access to the private archive is a revocable privilege.
Forms
revocable
revoke verb — To officially cancel or withdraw something.
revocation noun — The official cancellation or withdrawal of something.
Similar words
- cancelable
- Broader; also applies to ordinary reservations, orders, and subscriptions.
- voidable
- Emphasizes legal grounds for invalidation rather than permission to withdraw.