Anash means to be incurable, desperately ill, gravely wounded, or in a hopeless condition. It describes wounds or conditions beyond human healing — whether physical injuries, sick hearts, or broken social/moral conditions. The related noun anush (incurable) often describes wounds that will not respond to medicine.
The prophetic use of anash carries profound theological weight. Jeremiah and Micah use it of wounds that are "incurable" (Jeremiah 30:12), yet immediately God promises healing that transcends human ability. The diagnosis of incurability in Scripture always sets the stage for divine intervention — what is impossible for humans is not impossible for God.