What does "invalid" mean?
Invalid: (Law) Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement.
Additional senses
- 2.A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health.
- 3.Not well; feeble; infirm; sickly; as, he had an invalid daughter.
- 4.To make or render invalid or infirm. "Invalided, bent, and almost blind." Dickens.
- 5.To classify or enroll as an invalid. Peace coming, he was invalided on half pay. Carlyle.
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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- Published: 2026-07-17T00:00:00-07:00 · Modified: 2026-07-17T00:00:00-07:00