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invalid

Meaning in simple English, pronunciation and examples

Pronunciation: US /ɪnˈvælɪd/

invalid means: Not correct, officially accepted, or suitable for use.

adjective

NOT ACCEPTABLEB2

Not correct, officially accepted, or suitable for use.

  • This ticket is invalid.
  • The website says my password is invalid.
  • Her argument rests on an invalid assumption.

Similar words: unacceptable, not valid

Opposites: valid

Common phrases: invalid ticket, invalid argument, invalid password

noun

SICK PERSONC1

A person who needs care because a long illness or injury prevents normal daily activities.

  • The nurse cared for an elderly invalid.
  • He lived as an invalid after the accident.
  • The family hired someone to look after the invalid.

Common phrases: an elderly invalid, care for an invalid

verb

RELEASE FROM DUTYC2

To release someone from work, especially military service, because they are ill or injured.

  • He was invalided out of the army.
  • The wounded officer was invalided home.
  • She was invalided out of service after a serious illness.

How to use it: be invalided out of something (He was invalided out of the navy after an injury.); be invalided home (The soldier was invalided home with a serious illness.)

Similar words: discharge

Common phrases: invalid someone out, invalid someone home

Questions about invalid

What does invalid mean?

Not correct, officially accepted, or suitable for use.

What is invalid in other languages?

Türkçe: geçersiz · Español: inválido · Français: invalide · Deutsch: ungültig · Italiano: non valido · 日本語: 無効な

How do you pronounce invalid?

It is pronounced /ɪnˈvælɪd/.

How do you use invalid in a sentence?

This ticket is invalid. The website says my password is invalid.

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