Definition of "unhandled"

unhandled

adjective
not comparable
1. Not having been handled.
2. (figurative) Untrained, untame and beyond handling.
  Quotations
  […] 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; […]
  c. 1596–1598 (date written), William Shakespeare, “The Merchant of Venice”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act V, scene i]
3. Without a handle; handleless.
  Quotations
  Some light came dimly through cracks around that connecting, unhandled door, and through the roof.
  1986, Norma Johnston, The Watcher in the Mist, page 170
4. (computing) Of an event, exception, etc.: not having a handler.