Not valid; not true, correct, acceptable or appropriate.
This invalid contract cannot be legally enforced.
(sometimes offensive) Any person with a disability or illness.
(sometimes offensive) A person who is confined to home or bed because of illness, disability or injury; one who is too sick or weak to care for themselves.
A disabled member of the armed forces; one unfit for active duty due to injury.
To exempt from duty because of injury or ill health.
He was invalided home after the car crash.
To make invalid or affect with disease.
Intended for use by an invalid.