Passports ( pas ), ID cards ( občanský průkaz/občiansky preukaz ), or driver's licenses are neplatné once they pass their expiration date or if they are physically damaged.
In specific legal cases, a marriage can be declared "void" ( neplatné manželstvo ). 2. Transport and Tickets
In technology and online forms, neplatné is the standard error message for incorrect input.
In a legal sense, neplatné indicates that a document or agreement has no legal force.
Ensure your permit is visible and current; otherwise, it will be treated as neplatné . 3. Digital and Data Contexts
If you enter the wrong credentials, the system may flag your attempt as neplatné . Summary Table: Action Steps
Often appears when a form field (like a phone number or email) is filled out incorrectly.