unhandled

adj

1. (not-comparable)Not having been handled.
2. (figuratively, not-comparable)Untrained, untame and beyond handling.

   “[…] do but note a wild and wanton herd, Or race of youthful and unhandled colts, Fetching mad bounds, bellowing and neighing loud, Which is the hot condition of their blood; […]”

3. (not-comparable)Without a handle; handleless.

   “Some light came dimly through cracks around that connecting, unhandled door, and through the roof.”

4. (not-comparable)Not having an associated handler routine.

   “an unhandled event; an unhandled exception”