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invalid

in·va·lid1 / ˈinvəlid/ • n. a person made weak or disabled by illness or injury: [as adj.] an invalid husband. • v. (-lid·ed , -lid·ing ) [tr.] (usu. be invalided) remove (someone) from active service in the armed forces because of injury or illness: he was badly wounded and invalided out of the infantry. ∎  disable (someone) by injury or illness. DERIVATIVES: in·va·lid·ism / -ˌizəm/ n.

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"invalid." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"invalid." The Oxford Pocket Dictionary of Current English. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid-0

"invalid." The Oxford Pocket Dictionary of Current English. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid-0

Invalid

INVALID

Null; void; without force or effect; lacking in authority.

For example, a will that has not been properly witnessed is invalid and unenforceable.

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"Invalid." West's Encyclopedia of American Law. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"Invalid." West's Encyclopedia of American Law. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/law/encyclopedias-almanacs-transcripts-and-maps/invalid

"Invalid." West's Encyclopedia of American Law. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/law/encyclopedias-almanacs-transcripts-and-maps/invalid

invalid

invalid2 infirm or disabled from sickness or injury XVII; sb. XVIII. spec. use of prec. with modified pronunc. after F. invalide.

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"invalid." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"invalid." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid-2

"invalid." The Concise Oxford Dictionary of English Etymology. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid-2

invalid

invalid1 not valid. XVI. — L. invalidus; see IN-1, VALID.
So invalidate XVI, invalidity XVI.

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"invalid." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"invalid." The Concise Oxford Dictionary of English Etymology. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid-1

"invalid." The Concise Oxford Dictionary of English Etymology. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid-1

invalid

invalidaccede, bead, Bede, bleed, breed, cede, concede, creed, deed, Eid, exceed, feed, Gide, God speed, greed, he'd, heed, impede, interbreed, intercede, Jamshid, knead, lead, mead, Mede, meed, misdeed, mislead, misread, need, plead, proceed, read, rede, reed, Reid, retrocede, screed, secede, seed, she'd, speed, stampede, steed, succeed, supersede, Swede, tweed, weak-kneed, we'd, weed •breastfeed • greenfeed • dripfeed •chickenfeed • spoonfeed • nosebleed •Nibelungenlied • invalid • Ganymede •Runnymede • airspeed • millipede •velocipede • centipede • Siegfried •filigreed • copyread • crossbreed •proofread • flaxseed • hayseed •rapeseed • linseed • pumpkinseed •aniseed • oilseed • birdseed • ragweed •knapweed • seaweed • chickweed •stinkweed • blanket weed • bindweed •pondweed • duckweed • tumbleweed •fireweed • waterweed • silverweed

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"invalid." Oxford Dictionary of Rhymes. . Encyclopedia.com. 25 Jul. 2017 <http://www.encyclopedia.com>.

"invalid." Oxford Dictionary of Rhymes. . Encyclopedia.com. (July 25, 2017). http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid

"invalid." Oxford Dictionary of Rhymes. . Retrieved July 25, 2017 from Encyclopedia.com: http://www.encyclopedia.com/humanities/dictionaries-thesauruses-pictures-and-press-releases/invalid