Invalid | Mean of invalid in English Dictionary

/ɪnˈvæləd/

• not valid: such as
• having no force or effect
1. The judge declared that the contract was invalid.
• not based on truth or fact
1. an invalid argument
• Noun

• a person who needs to be cared for because of injury or illness
1. Her husband has become an invalid.
2. She cares for her invalid husband at home.
• Verb
• to release (someone) from active military service because of illness or injury
1. He was invalided out of the army.
2. He was invalided home.