May 16, 2026 · The meaning of INVALID is not valid. How to use invalid in a sentence.

INVALID definition: an infirm or sickly person. See examples of invalid used in a sentence.

INVALID definition: 1. An invalid document, ticket, law, etc. is not legally or officially acceptable: 2. An invalid…. Learn more.

6 meanings: 1. a. a person with disablement or chronic ill health b. (as modifier) 2. incapacitated or disabled by injury,.... Click for more definitions.

6 days ago · invalid (third-person singular simple present invalids, present participle invaliding, simple past and past participle invalided) (UK, transitive) To exempt from (often military) duty because of …

Invalid definition: To incapacitate physically. Origin of Invalid Latin invalidus weak in- not in– 1 validus strong (from valēre to be strong wal- in Indo-European roots) From American Heritage Dictionary of …

Find 81 different ways to say INVALID, along with antonyms, related words, and example sentences at Thesaurus.com.

A person who is very sick or injured and needs frequent care is an invalid. Also, something no longer current or useful is invalid.

Define invalid. invalid synonyms, invalid pronunciation, invalid translation, English dictionary definition of invalid. n. One who is incapacitated by a chronic illness or disability. adj. 1. Incapacitated by illness …

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