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invalid

1

[ in-vuh-lid ]

noun

  1. an infirm or sickly person.
  2. a person who is too sick or weak to take care of their own needs:

    My father was an invalid the last ten years of his life.

  3. Archaic. a member of the armed forces disabled for active service.


adjective

  1. unable to care for oneself due to infirmity or disability:

    his invalid sister.

  2. of or for invalids:

    invalid diets.

  3. (of things) in poor or weakened condition:

    the invalid state of his rocking chair.

verb (used with object)

  1. to affect with disease; make an invalid:

    He was invalided for life.

  2. to remove from or classify as not able to perform active service, as an invalid.
  3. British. to remove or evacuate (military personnel) from an active theater of operations because of injury or illness.

verb (used without object)

Archaic.
  1. to become an invalid.

invalid

2

[ in-val-id ]

adjective

  1. not valid; not founded in truth, fact, or logic, and hence weak and indefensible; unsound; untenable:

    The entire argument depends on an invalid assumption.

    Synonyms: , , , , , , ,

  2. deficient in effectiveness; inadequate:

    Self-perception is an invalid method of judging one's own biases.

  3. void or without legal force, as a contract:

    Without the grandfather clause, thousands of such warranties would now be invalid. The coupon is invalid in our state.

    Synonyms:

  4. not accepted or permitted because a required element or the necessary form is lacking; not usable:

    Anything with fewer than five characters is an invalid password, and you’ll get an error message prompting you to pick something more secure.

invalid

1

/ ˈɪnvəˌliËd; -lɪd /

noun

    1. a person suffering from disablement or chronic ill health
    2. ( as modifier )

      an invalid chair

“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. suffering from or disabled by injury, sickness, etc
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

verb

  1. to cause to become an invalid; disable
  2. usually foll by out; often passive to require (a member of the armed forces) to retire from active service through wounds or illness
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

invalid

2

/ ɪnˈvælɪd; ˌɪnvəˈlɪdɪtɪ /

adjective

  1. not valid; having no cogency or legal force
  2. logic (of an argument) having a conclusion that does not follow from the premises: it may be false when the premises are all true; not valid
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Usage

It is best to avoid using the term invalid when referring to people with chronic illnesses or disabilities
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Derived Forms

  • ËŒ¾±²Ô±¹²¹Ëˆ±ô¾±»å¾±³Ù²â, noun
  • invalidity, noun
  • ¾±²Ôˈ±¹²¹±ô¾±»å±ô²â, adverb
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Other ˜yÐÄvlogs From

  • ¾±²Ô·±¹²¹±ô·¾±»å·±ô²â adverb
  • ¾±²Ô·±¹²¹±ô·¾±»å·²Ô±ð²õ²õ noun
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˜yÐÄvlog History and Origins

Origin of invalid1

First recorded in 1635–45; from French invalide, from Latin invalidus “weak, feeble, infirmâ€; See in- 3, valid

Origin of invalid2

First recorded in 1630–40; from Latin invalidus “weak, feebleâ€; invalid 1
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˜yÐÄvlog History and Origins

Origin of invalid1

C17: from Latin invalidus infirm, from in- 1+ validus strong

Origin of invalid2

C16: from Medieval Latin invalidus without legal force; see invalid 1
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Example Sentences

Appellate Court Judge Jefferson Griffin, the Republican candidate who trails by just 734 votes, is seeking to have some 65,000 votes he claims are invalid thrown out from the November contest.

From

But the White House said the planes were already in international airspace, arguing that the judge's order was therefore invalid.

From

Mr Lovell added that if Hackman's children challenge the will, they would need to prove that it is invalid because Arakawa died before him.

From

Chiles’ lawyers asserted that any delays were the fault of CAS, which sent all correspondence to Chiles to an invalid email address that indicated to the sender that the emails didn’t reach her.

From

Each of those concerns, Flick writes, was “invalid†and “based on an inaccurate understanding of SSA’s data and programs.â€

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