Definition
• | Of no force, weight, or cogency; not valid; weak. |
• | Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement. |
• | A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health. |
• | Not well; feeble; infirm; sickly; as, he had an invalid daughter. |
• | To make or render invalid or infirm. |
• | To classify or enroll as an invalid. |