defeasible
defeasible a. 可作废的；可取消的；可解除的；可宣告无效的 指行为、权利、合同等可以被撤销或归于无效。如抵押财产因为抵押人在衡平法上享有的回赎权〔redemption〕而成为「可作废的」。 (→defeasance)
DEFEASIBLE
defeasible
defeasible, adj. (Of an act, right, agreement, or position) capable of being annulled or avoided (defeasible deed). See fee simple defeasible under FEE SIMPLE . — defeasibility, n.