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ENGLISH DICTIONARY

Invalid

/ɪnˈvæl.ɪd/ · adjective

Meaning

Not valid; not true, correct, acceptable, or appropriate..

Definitions by Sense

  1. Not valid; not true, correct, acceptable, or appropriate.
  2. (dated, sometimes offensive) Any person with a disability or illness.
  3. (dated, sometimes offensive) A person who is confined to home or bed because of illness, disability or injury; one who is too sick or weak to care for themselves.
  4. (archaic) A disabled member of the armed forces; one unfit for active duty due to injury.
  5. Suffering from disability or illness.
  6. Intended for use by an invalid.
  7. (British, transitive) To exempt from (often military) duty because of injury or ill health.
  8. (transitive) To make invalid or affect with disease.

Example Sentences

Your argument is invalid because it uses circular reasoning.
This invalid contract cannot be legally enforced.
Invalidism therefore referred to a lack of power as well as a tendency toward illness. It is for this reason that I choose to discuss the invalid woman rather than just the ill one.
He was invalided home after the car crash.
[Blackadder:] Right, Baldrick, this is an old trick I picked up in the Sudan. We tell HQ that I’ve gone insane, and I’ll be invalided back to Blighty before you can say "wibble" — a poor, gormless idiot.
The Japanese armored cruiser Nisshin has been hit badly. Shells have sheared off several main guns and virtually disarmed the vessel. In the middle of all this, one Ensign Isoroku Yamamoto loses two fingers to the remains of an explosion. If he'd lost a third, he would've been invalided out of military service. Thus, by the retention of a single digit would there be rather large consequences a few decades later on down the line.

Synonyms for invalid

Antonyms for invalid

Related Words

Word Forms

Usage Notes

Choose a synonym only when it preserves the intended meaning, tone, and grammar of the full sentence.

Practice and Learn More

Frequently Asked Questions

What does invalid mean?

Invalid means Not valid; not true, correct, acceptable, or appropriate..

What is a synonym for invalid?

Common synonyms include disallowed, nonvalid, void, fallacious.

What is the opposite of invalid?

Possible antonyms include valid.

How do you use invalid in a sentence?

Your argument is invalid because it uses circular reasoning.

Sources & Attribution

FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0

Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.