geopiet Apr 19, 2013:

re: invalid Null; void; without force or effect; lacking in authority.

For example, a will that has not been properly witnessed is invalid and unenforceable.

http://legal-dictionary.thefreedictionary.com/invalid

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Legally ineffective; unfounded - http://law.yourdictionary.com/invalid

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being without force or effect under the law [declared the will ] - http://dictionary.findlaw.com/definition/invalid.html

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Vain; inadequate to its purpose; not of binding force or legal efficacy; lacking in authority or obligation.

http://thelawdictionary.org/invalid/

Swift Translation Apr 19, 2013:

invalid to nieprawomocny. Tak mówią słowniki, tak mnie uczono na kursie z tłumaczeń prawniczych.

Łukasz Gos-Furmankiewicz Apr 18, 2013:

Invalid to wadliwy, reszty też bym się bał. Not yet final albo open to appeal / appealable. Cheers!