invalid

adjectivenounadjectiveverbattested in dialogue

//ɪnˈvæl.ɪd//
//ˈɪn.və.lɪd//
//ˈɪn.vəˌliːd//

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

adjective

1
Not valid; not true, correct, acceptable, or appropriate.
Your argument is invalid because it uses circular reasoning.
This invalid contract cannot be legally enforced.

Etymology

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.

noun

1
datedAny person with a disability or illness.
2
datedA 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.
3
archaicA disabled member of the armed forces; one unfit for active duty due to injury.

Etymology

Etymology tree Proto-Indo-European *né Proto-Indo-European *n̥- Proto-Italic *n̥- Latin 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 validus Latin invalidusbor. Middle French invalidebor. English invalid Borrowed from Middle French invalide, from Latin invalidus (“infirm, weak”), from in- (“not”) + validus (“strong”).

adjective

1
Suffering from disability or illness.
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.
2
Intended for use by an invalid.

verb

1
To exempt from (often military) duty because of injury or ill health.
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.
2
To make invalid or affect with disease.

Forms

plural: invalids
comparative: more invalid
superlative: most invalid
past tense: invalided
past participle: invalided
present participle: invaliding
third person singular: invalids

intrusion · The forcible inclusion or entry of an external group or…intuition · Immediate cognition without the use of conscious rational…invade · To move into.

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

invaluable · Having great or incalculable value.invasion · A military action consisting of a large armed force of one…invent · To design a new process or mechanism.

The neighbouring pages — Alphabetical order follows the rules of the language, not byte values: an accent decides only between two otherwise identical words, and Spanish files Ñ as a letter of its own.