invalid Antonyms

Meaning of invalid

Wordnet

invalid (n)

someone who is incapacitated by a chronic illness or injury

Wordnet

invalid (v)

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

injure permanently

Wordnet

invalid (a)

having no cogency or legal force

Wordnet

invalid (s)

no longer valid

Webster

invalid (a.)

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

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

A person who is weak and infirm; one who is disabled for active service; especially, one in chronic ill health.

Webster

invalid (n.)

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

Webster

invalid (v. t.)

To make or render invalid or infirm.

To classify or enroll as an invalid.

FAQs About the word 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 l

sick, weakly, dying, fragile, frail, feeble, ailing,weak, sickly, poorly

whole, healthy,well, healthy, whole, well, hale, sound, wholesome, hale

The doctor deemed the patient's medical certificate invalid due to missing information.

His driver's license became invalid after he failed to renew it on time.

The coupon code she tried to use at the checkout was invalid and could not be applied.

The contract was rendered invalid because it lacked the necessary signatures.