Invalid Meaning

/ɪnˈvæl.ɪd/
C1

Definition, CEFR level C1, pronunciation, examples, and quiz.

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

nounAny person with a disability or illness.

The contract, if you were forced to sign it, is invalid.
From tomorrow this email address will be invalid.
Synonyms:
Antonyms:
CEFR Practice Quiz
His driver's license was declared ____ because of the expired date on it.
CEFR Practice Quiz (Alternate)
Your password is ____, so please try again or click the link to reset it if you have forgotten it.

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin in-bor. Middle English in- English in- Proto-Indo-European *h₂welh₁- Proto-Indo-European *h₂wl̥h₁éh₁yeti Proto-Italic *walēō Latin valeō Proto-Indo-European *dʰeh₁-der. Proto-Italic *-iðos Latin -idus Latin validusder. Middle French validebor. English valid English invalid From in- + valid.

"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." — 2000, Diane Price Herndl, Invalid Women: Figuring Feminine Illness in American Fiction and Culture, 1840-1940, University of North Carolina Press, →ISBN, page 1:
"[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." — 1989 November 2, Richard Curtis, Ben Elton, “Goodbyeee”, in Blackadder Goes Forth:
"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." — 2019 September 18, Drachinifel, 26:33 from the start, in Battle of Tsushima - When the 2nd Pacific Squadron thought it couldn't get any worse..., archived from the original on 04 Dec 2022:

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CEFR Practice Quiz
His driver's license was declared ____ because of the expired date on it.
CEFR Practice Quiz (Alternate)
Your password is ____, so please try again or click the link to reset it if you have forgotten it.

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