[in-vuh-lid; British in-vuh-leed]
an infirm or sickly person.
a person who is too sick or weak to care for himself or herself: My father was an invalid the last ten years of his life.
Archaic. a member of the armed forces disabled for active service.
unable to care for oneself due to infirmity or disability: his invalid sister.
of or for invalids: invalid diets.
a : being without foundation or force in fact, truth, or law <an invalid assumption>
<declared the will invalid>. b : logically inconsequent. — in·val·id·ly \-lē\ adverb.
adj in·va·lid \ˈin-və-ləd, British usually -ˌlēd\. Medical Definition of INVALID. 1. :
suffering from disease or disability : sickly. 2. : of, relating to, or suited to one that
One who is incapacitated by a chronic illness or disability. adj. 1. Incapacitated by
illness or injury. 2. Of, relating to, or intended for invalids. tr.v. in·va·lid·ed, ...
A driver's license that has expired is invalid — it needs to be renewed. If you lost
your health insurance, it's invalid. People who are called invalids are disabled ...
There are 2 main definitions of invalid in English: 1; 2. Share this entry. email cite
discuss. invalid 1. See definition in Oxford Advanced Learner's Dictionary.
Top Definition. Invalid. Inconsistent with some web programmer's arbitrary and
frequently incorrect notion of how the world should be. A: Why does that web site
Definition of “invalid” | The official Collins English Dictionary online.
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invalid. Play [in′və lid; chiefly Brit, -lēd′]. Use invalid in a sentence. LINK / CITE
ADD TO WORD LIST. An elderly invalid. Licensed from iStockPhoto. adjective.
invalid definition, meaning, what is invalid: An invalid document, ticket, law, etc. is
not legally or officially acceptable: . Learn more.