Words nearby invalid
inv.,
invade,
invaginable,
invaginate,
invagination,
invalid,
invalidate,
invalidism,
invalidity,
invalidity benefit,
invaluable
Definition for invalid (2 of 2)
invalid
2
[ in-val-id ]
/ ɪnˈvæl ɪd /
adjective
not valid; without force or foundation; indefensible.
deficient in substance or cogency; weak.
void or without legal force, as a contract.
Origin of invalid
2
1625–35; < Medieval Latin
invalidus, Latin: weak; see
invalid1
OTHER WORDS FROM invalid
in·val·id·ly, adverb in·val·id·ness, nounExample sentences from the Web for invalid
British Dictionary definitions for invalid (1 of 2)
invalid
1
/ (ˈɪnvəˌliːd, -lɪd) /
noun
- a person suffering from disablement or chronic ill health
- (as modifier)an invalid chair
adjective
suffering from or disabled by injury, sickness, etc
verb (tr)
to cause to become an invalid; disable
(usually foll by out; often passive) mainly British
to require (a member of the armed forces) to retire from active service through wounds or illness
Derived forms of invalid
invalidity, nounWord Origin for invalid
C17: from Latin
invalidus infirm, from
in-
1 +
validus strong
usage for invalid
It is best to avoid using the term
invalid when referring to people with chronic illnesses or disabilities
British Dictionary definitions for invalid (2 of 2)
invalid
2
/ (ɪnˈvælɪd) /
adjective
not valid; having no cogency or legal force
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
Derived forms of invalid
invalidity (ˌɪnvəˈlɪdɪtɪ) or invalidness, noun invalidly, adverbWord Origin for invalid
C16: from Medieval Latin
invalidus without legal force; see
invalid
1
Medical definitions for invalid
invalid
[ ĭn′və-lĭd ]
n.
One who is incapacitated by a chronic illness or disability.
adj.
Incapacitated by illness or injury.