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Capable of being annulled or invalidated: a defeasible claim to an estate.

de·fea′si·bil′i·ty n.


1. (Law) law (of an estate or interest in land) capable of being defeated or rendered void
2. (Philosophy) philosophy (of a judgment, opinion, etc) having a presupposition in its favour but open to revision if countervailing evidence becomes known. Compare incorrigible3
deˈfeasibleness, deˌfeasiˈbility n


(dɪˈfi zə bəl)

capable of being annulled or terminated.
[1580–90; < Anglo-French]
de•fea′si•ble•ness, de•fea`si•bil′i•ty, n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.defeasible - 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"
indefeasible - not liable to being annulled or voided or undone; "an indefeasible right to freedom"; "an indefeasible claim to the title"
References in periodicals archive ?
These built-in norms are implicit and determine how an agent acts rather than being explicit and defeasible suggestions as to how the agent ought to act.
The presumption of "no, at least not yet"--although defeasible, and not infrequently defeated--gave women shelter and more control over when and if a sexual relationship would happen.
Entin, Defeasible Fees, State Action, and the Legacy of Massive Resistance, 34 Wm.
Present interests in land include fee simple, fee tail, defeasible fees, life estates, and leaseholds.
221) One might also think of the Court's requirement of a super-strong clear statement in order to cut off federal jurisdiction as embodying a constitutional norm against jurisdiction stripping, albeit one defeasible by Congress if it acts with sufficient clarity.
For this reason, freedom is a defeasible right, as the philosophers say.
Although I have given precedence to critique--with the hope of encouraging debate--and although I maintain that the author's assumptions, approaches, and conclusions are defeasible, I believe this book to be a contribution of the highest order.
As such, the concerns raised here should be considered defeasible in light of rapidly developing evidence in this area.
c) And yet, none of the claims he offers as candidate intuitions is described in its contextualized or defeasible form.
His namesake Bruce Hoffman predicted that the combination of propaganda and information operations effectively conducted by our enemy with our incapability to beat them will lead to their later emergence in alternative battle spaces, with more lethal skills and deeper credibility, as they are toughly defeasible by conventional means.
Other topics include identification of persistent-state hidden Markov models, separation of speech from background music, defeasible reasoning for description logics, clause simplification in search-space decomposition-based SAT solvers, and computing optimal policies for attack graphs.
The European Convention on Nationality creates a defeasible rule against denationalization.