ADJ
无效的;作废的
If an action, procedure, or document is invalid, it cannot be accepted, because it breaks the law or some official rule.
例句
The trial was stopped and the results declared invalid...
审判被中止,判决结果被宣布无效。
We cannot accept liability if you are refused entry because of invalid documents.
如果你因证件无效被拒入内,我们不承担责任。