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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 ?
evade responsibility for event (options--blame outside provocation, defeasibility in terms of information or control, unforeseen accident and emphasise good intentions), 3.
Most epistemic externalists, however, allow a residual amount of internalism in terms of a defeasibility condition.
It is also an important contribution to the topic now commonly discussed under the rubric of legal defeasibility.
Here is a slightly different way to approach the point: when Congress simultaneously enacts a requirement and makes it defeasible at the agency's discretion, the characteristic of defeasibility already has been built into the requirement as passed.
The weights of reasons, then, are a function of the defeasibility of the sound reasoning in which they figure.
All or almost all originalists can agree on a minimum level constraint: the doctrines of constitutional law and decisions in constitutional cases should be consistent with the original meaning--subject to limited and exceptional defeasibility conditions.
Rejecting this, Murphy might instead maintain that such appearances are best explained by the defeasibility of moral laws.
In addition to good intention, provocation, defeasibility, and accident are three other tactics that are used to evade responsibility.
On the one hand, it is possible to investigate the structure and the defeasibility conditions of the reasoning leading from the predication of a word to a reason to act.
Defeasibility in philosophy; knowledge, agency, responsibility, and the law.
47) Supra note 44 at para 97 where Chief Justice Mason, and Justices Brennan, Deane, Toohey, Gaudron, and McHugh noted that the removal of the general defeasibility of native title by the NTA for the purposes of s 51(26) of the Constitution is sufficient to demonstrate that the Parliament could properly have deemed that Act to be "necessary.