invalid

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in·va·lid

(in'vă-lid),
1. Weak; sick.
2. A person partially or completely disabled.
[L. in- neg. + validus, strong]

invalid

(ĭn′və-lĭd)
n.
One who is incapacitated by a chronic illness or disability.
adj.
1. Incapacitated by illness or injury.
2. Of, relating to, or intended for invalids.
tr.v. inva·lided, inva·liding, inva·lids
1. To incapacitate physically.
2. Chiefly British To release or exempt from duty because of ill health: "I was not quite sick enough to be invalided out, even though I was of no more use" (Mary Lee Settle).

in·va·lid

(in'vă-lid)
1. Weak; sick.
2. A person partially or completely disabled.
[L. in- neg. + validus, strong]

invalid

(ĭn′vă-lĭd) [L. in-, not, + validus, strong]
1. A former term for a person who is not well; weak. Use of the term is archaic.
2. Based on false premises, reasonings, or justifications.
References in periodicals archive ?
It is particularly attractive for those who have been sued in districts which are less likely to invalidate patents.
To invalidate an area of study because it selects and revises its knowledge--because it decides what data are relevant to its concerns--is to preclude the possibility of human beings ever achieving knowledge in any area, including feminism.
This means Microsoft would have only needed half of the evidence in its favor to invalidate a patent.
The proposal would invalidate a check-the-box election if an "extraordinary transaction" occurs within a specified time period.
5 million held by East New York Savings Bank), it is not a sufficient reason to invalidate the wraparound mortgage for lack of consideration.
He said their decision to invalidate the votes had been acknowledged by the IECC's headquarters, which later apparently succumbed to pressure from presidential candidates.
When the IRS processes a tax return filed pursuant to an extension, it will not automatically invalidate the extension if the return as filed reports a tax liability greater than the estimated liability shown on the request for extension, even if the discrepancy between the two amounts is substantial.
I can understand that the mayor was wrong, but with the constitutional issue still on the table, there was no reason to invalidate the marriages.
Walsh declined to invalidate county Ordinance 4088, which requires the proceeds of a half-cent statewide sales tax to be spent on public safety in the county.