Dictionary Definition
invalid adj
1 having no cogency or legal force; "invalid
reasoning"; "an invalid driver's license" [ant: valid]
2 no longer valid; "the license is invalid" n :
someone who is incapacitated by a chronic illness or injury [syn:
shut-in]
Verb
1 force to retire, remove from active duty, as of
firemen
User Contributed Dictionary
Extensive Definition
Invalid may refer
to:
- Patient, a sick person
- A person with a disability
As the opposite of
valid:
- Validity, in logic, true premises cannot lead to a false conclusion
- Validity (statistics), a measure which is measuring what it is supposed to measure
- .invalid, a top-level domain not intended for real use
invalid in Kölsch: Invalid
(Watt ėßß datt?)
invalid in Russian: Инвалид
(значения)
Synonyms, Antonyms and Related Words
Diogenes, Hieronymian, Hieronymite, Timon of
Athens, 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,
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, 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repealed, repudiated, revoked, rheumatic, run-down, seclusionist,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, 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