可废止的
Defeasible \De*fea"si*ble\, a. [See {Defeasance}.] Capable of being annulled or made void; as, a defeasible title. -- {De*fea"si*ble*ness}, n.
defeasible adj : capable of being annulled or voided or terminated; "a claim to an estate may be defeasible so long as the claimant is under 21 and unmarried" [ant: {indefeasible}]