/ˈɪnvəlɪd/ – noun/adj
Definition: 1. không có hiệu lực pháp lý, không có hiệu lực;
2. người tàn tật.
A more thorough explanation: In legal terms, “invalid” refers to something that is not legally binding or effective, often due to being in violation of laws or regulations. It can also refer to a person who is not legally capable of making decisions, such as a minor or someone who is mentally incapacitated.
Example: The court ruled that the contract was invalid due to a lack of consideration.