Not valid; not true, correct, acceptable or appropriate.
Suffering from disability or illness.
Intended for use by an invalid.
To make invalid or affect with disease.
To exempt from (often military) duty because of injury or ill health.
Without consideration, awareness or sound judgement
Lacking meaning or purpose; without common sense.
Without a discernible meaning or purpose, especially of a violent or evil act.
Without feeling or consciousness; deprived of sensation.