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invalid

adjective, noun

/ˈɪnvəlɪd/ (adjective), /ɪnˈvælɪd/ (noun)

Meaning

Not valid; having no force or effect. Also refers to a person too weak or ill to care for themselves.

The court declared the contract invalid.

invalid argument

void, ineffective, worthless, weak, ill

valid, sound, effective

invalid contract, invalid data, invalid reason

Money that is owed to a company and is expected to be paid.

relating to Asia or its people

relating to the mind or supernatural powers; a person claiming to have extrasensory abilities

relating to the countryside, shepherds, or rural life; also relating to spiritual guidance by a past...

relating to the body; a low-ranking officer in the military

Extremely important or urgent; an essential duty or command.