Not valid; of no force, weight, or cogency; weak.

In law, having no validity or binding force; wanting efficacy; null; void: as, an invalid contract or agreement.

Deficient in health; infirm; weak; sick.

noun. An infirm or sickly person; one who is affected by disease or disabled by any infirmity.

noun. Hence Something that is damaged, or the worse for wear, but not so much as to be wholly unserviceable.

To affect with disease; render an invalid: chiefly in the past participle.

To register as an invalid; enroll on the list of invalids in the military or naval service; give leave of absence from duty on account of ill health.

To cause one's self to be registered as an invalid.

adjective. Of no force, weight, or cogency; not valid; weak.

adjective. Having no force, effect, or efficacy; void; null.

noun. 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.

adjective. Not well; feeble; infirm; sickly.

transitive verb. To make or render invalid or infirm.

transitive verb. To classify or enroll as an invalid.

adjective. Not valid; not true, correct, acceptable or appropriate.

noun. One who is confined to home or bed because of illness, disability or injury

noun. Any person with a disability.

adjective. Intended for use by an invalid.

verb. To exempt from duty because of injury or ill health.

adjective. no longer valid

adjective. having no cogency or legal force

verb. force to retire, remove from active duty, as of firemen

verb. injure permanently

noun. someone who is incapacitated by a chronic illness or injury

"This revision adds requested functionality for outputting invalid or outdated standard numbers represented in subfields $y or $z in MARC 010, 020, 022, 024, 028, and 037 to the @invalid in MODS."

binding  valid  

illogical  

bad  expired  fallacious  false  invalidated  

invalid carriage  

diseased person  remove  sick person  sufferer  

ballad  pallid  salad  valid  

cripple  dear  deceased  elderly  false  

Diogenes  Hieronymian  Hieronymite  Timon of Athens  absonant  

invalided  invaliding  invalids