• To render invalid; to weaken or lessen the force of; to destroythe authority of; to render of no force or effect; to overthrow; as,to invalidate an agreement or argument.


    Invalidate meaning & definition 1 of Invalidate.


  • to officially stop a document, ticket, law, etc. being legally or officially acceptable

    Invalidate meaning & definition 2 of Invalidate.


  • Make (an argument, statement, or theory) unsound or erroneous.

    Invalidate meaning & definition 3 of Invalidate.

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