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What is another word for invalid?

What's another word for invalid? | Here's a list of synonyms for invalid.

Definition 1: someone who is incapacitated by a chronic illness or injury - [noun denoting person]

Definition 1: injure permanently - [verb of body]

Definition 1: force to retire, remove from active duty, as of firemen - [verb of social]

Definition 1: having no cogency or legal force - [adjective denoting all]

Definition 1: no longer valid - [adjective satellite denoting all]