incurable

adj

1. (not-comparable)Of an illness, condition, etc, that is unable to be cured; healless.

   “They were labouring under a profound, and, as it might have seemed, an almost incurable ignorance.”

2. (figuratively, not-comparable)Irremediable, incorrigible.

   “an incurable romantic”

noun

1. One who cannot be cured.

   “Heatherlegh, the Doctor, kept, in addition to his regular practice, a hospital on his private account — an arrangement of loose-boxes for Incurables, his friends called it — but it was really a sort of fitting-up shed for craft that had been damaged by stress of weather.”