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Invalid may refer to: Patient, a sick person; one who is confined to home or bed because of ... Look up invalid in Wiktionary, the free dictionary.


Invalid definition, an infirm or sickly person. See more.


Define invalid: not valid:; being without foundation or force in fact, truth, or law; logically inconsequent — invalid in a sentence.


invalid definition, meaning, what is invalid: An invalid document, ticket, law, etc. is not legally or officially acceptable: . Learn more.


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 Also, something no longer current or useful is invalid.


Definition of invalid - a person made weak or disabled by illness or injury.


Invalid definition: An invalid is someone who needs to be cared for because they have an illness or... | Meaning, pronunciation, translations and examples.


invalid meaning, definition, what is invalid: a contract, ticket, claim etc that is in...: Learn more.


Invalid is defined as not correct or provable or not legally recognized. An example of invalid is a theory that has been proven wrong. An example of invalid is a ...