'Invalid' definitions:
Definition of 'invalid'
From: WordNet
adjective
Having no cogency or legal force; "invalid reasoning"; "an invalid driver's license" [ant: valid]
adjective
No longer valid; "the license is invalid"
noun
Someone who is incapacitated by a chronic illness or injury [syn: invalid, shut-in]
verb
Force to retire, remove from active duty, as of firemen
verb
Injure permanently; "He was disabled in a car accident" [syn: disable, invalid, incapacitate, handicap]
Definition of 'Invalid'
From: GCIDE
- Invalid \In*val"id\, a. [Pref. in- not + valid: cf. F. invalide, L. invalidus infirm, weak. Cf. Invalid infirm.] [1913 Webster]
- 1. Of no force, weight, or cogency; not valid; weak. [1913 Webster]
- 2. (Law) Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement. [1913 Webster]
Definition of 'Invalid'
From: GCIDE
- Invalid \In"va*lid\ (?; 277), n. [F. invalide, n. & a., L. invalidus, a. See Invalid null.] A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health who is unable to care for himself. [1913 Webster]
Definition of 'Invalid'
From: GCIDE
- Invalid \In"va*lid\, a. [See Invalid, n.] Not well; feeble; infirm; sickly; as, he had an invalid daughter. [1913 Webster]
Definition of 'Invalid'
From: GCIDE
- Invalid \In"va*lid\, v. t.
- 1. To make or render invalid or infirm. "Invalided, bent, and almost blind." --Dickens. [1913 Webster]
- 2. To classify or enroll as an invalid. [1913 Webster]
- Peace coming, he was invalided on half pay. --Carlyle. [1913 Webster]
Synonyms of 'invalid'
From: Moby Thesaurus
- absonant,
- afflict,
- ailing,
- anchoress,
- anchorite,
- annulled,
- apoplectic,
- arthritic,
- ascetic,
- bad,
- barren,
- bedridden invalid,
- black,
- blank cartridge,
- bootless,
- cachectic,
- case,
- castrato,
- cloistered monk,
- closet cynic,
- consumptive,
- contradictory,
- contrary to reason,
- counterproductive,
- criminal,
- cripple,
- debilitate,
- debilitated,
- derange,
- desert fathers,
- desert saints,
- devitalize,
- Diogenes,
- disable,
- disabled,
- disorder,
- drained,
- dud,
- dyspeptic,
- effete,
- empty,
- enervate,
- enervated,
- enfeeble,
- epileptic,
- eremite,
- erroneous,
- etiolated,
- eunuch,
- evil,
- exhausted,
- failing,
- fallacious,
- false,
- fatuitous,
- fatuous,
- faulty,
- feckless,
- feeble,
- flawed,
- frail,
- fruitless,
- futile,
- gelding,
- healthless,
- hermit,
- hermitess,
- Hieronymian,
- Hieronymite,
- homebody,
- hospitalize,
- ill,
- illogical,
- impaired,
- imperfect,
- impotent,
- improper,
- in poor health,
- inaccurate,
- inadequate,
- inane,
- inauspicious,
- inauthentic,
- incapacitate,
- incompetent,
- inconclusive,
- incongruous,
- inconsequent,
- inconsequential,
- inconsistent,
- incorrect,
- incurable,
- indispose,
- ineffective,
- ineffectual,
- inefficacious,
- inexpedient,
- inferior,
- infirm,
- inoperative,
- inpatient,
- irrational,
- isolationist,
- languishing,
- lay up,
- loner,
- loose,
- mad,
- malevolent,
- marabout,
- moribund,
- nonrational,
- nonscientific,
- not following,
- nugacious,
- nugatory,
- null and void,
- of no force,
- outcast,
- outpatient,
- pale,
- paralogical,
- pariah,
- patient,
- peaked,
- peaky,
- peccant,
- pillar saint,
- pillarist,
- reasonless,
- recluse,
- reduce,
- reduced,
- reduced in health,
- repealed,
- repudiated,
- revoked,
- rheumatic,
- run-down,
- seclusionist,
- self-annulling,
- self-contradictory,
- self-refuting,
- senseless,
- shut-in,
- sick,
- sick person,
- sicken,
- sickly,
- sinful,
- sinister,
- solitaire,
- solitary,
- solitudinarian,
- sophistic,
- spastic,
- spurious,
- stay-at-home,
- sterile,
- stylite,
- sufferer,
- terminal case,
- the sick,
- Timon of Athens,
- unauthentic,
- unavailing,
- unconnected,
- unfavorable,
- unhealthy,
- unkind,
- unphilosophical,
- unpleasant,
- unreasonable,
- unscientific,
- unskillful,
- unsound,
- untenable,
- untoward,
- untrue,
- useless,
- vain,
- valetudinarian,
- valetudinary,
- vicious,
- victim,
- void,
- weaken,
- weakened,
- weakling,
- weakly,
- wicked,
- with low resistance,
- without reason,
- wrong