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To impair or make void; to destroy or annul, either completely or partially, the force and effect of an act or instrument.

Mutual mistake or Fraud, for example, might vitiate a contract.

West's Encyclopedia of American Law, edition 2. Copyright 2008 The Gale Group, Inc. All rights reserved.


to destroy the force or legal effect of, for example, a deed.
Collins Dictionary of Law © W.J. Stewart, 2006
References in periodicals archive ?
A frequent defense raised by related guarantors is lack of adequate consideration for the guaranty, or that absence of board approval or adherence to corporate formalities vitiates the guaranty.
It said continuation of this blame-game vitiates the environment of bilateral relations and undermines sincere efforts to rebuild trust and understanding.
This is the fatal flaw that vitiates recent attempts to construct a bioethics or a biopolitics.
Thus the doubling of Claudius and Hamlet acquires a literal status that vitiates its suggestiveness.