Invalid vs. Nonvalid

One who is incapacitated by a chronic illness or disability.

Not valid.

Incapacitated by illness or injury.

Of, relating to, or intended for invalids.

Not legally or factually valid; null

Falsely based or reasoned; faulty

To incapacitate physically.

Chiefly British To release or exempt from duty because of ill health

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

Suffering from disability or illness.

Intended for use by an invalid.

Any person with a disability or illness.

A person who is confined to home or bed because of illness, disability or injury; one who is too sick or weak to care for themselves.

(archaic) A disabled member of the armed forces; one unfit for active duty due to injury.

To exempt from (often military) duty because of injury or ill health.

(transitive) To make invalid or affect with disease.

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

Having no force, effect, or efficacy; void; null; as, an invalid contract or agreement.

Not well; feeble; infirm; sickly; as, he had an invalid daughter.

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.

To make or render invalid or infirm.

To classify or enroll as an invalid.

someone who is incapacitated by a chronic illness or injury

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

injure permanently;

having no cogency or legal force;

no longer valid;