invalidate
in‧val‧i‧date AC /ɪnˈvælədeɪt, ɪnˈvælɪdeɪt/
verb [transitive]1. to make a document, ticket, claim etc no longer legally or officially acceptable:
Failure to disclose all relevant changes may invalidate your policy.
2. to show that something such as a belief or explanation is wrong:
Later findings invalidated the theory.
in‧val‧i‧date AC /ɪnˈvælədeɪt, ɪnˈvælɪdeɪt/
verb [transitive]1. to make a document, ticket, claim etc no longer legally or officially acceptable: 2. to show that something such as a belief or explanation is wrong: