Definitions for "No-Contest Clause"
Part of a Will that is meant to keep people from contesting the Will. It says that if a person challenges the Will and loses, s/he gives up anything s/he would have inherited in the Will. If s/he challenges the Will and wins, the No-Contest Clause does not matter.
Language in a will that provides that a person who makes a legal challenge to the will's validity will be disinherited.
A clause in some wills and trusts that purports to disinherit any person attempting to attack the validity of such will or trust. Does this work? Sometimes, depending on the court and the equities involved. If the beneficiary has something substantial to lose, it may at least give him pause before contesting the document.