unpredicted
1. [ adjective ] without warning or announcement
Synonyms: unheralded unannounced
Examples:

"they arrived unannounced" "a totally unheralded telegram that his daughter...died last night"- M.A.D.Howe

Related terms: unexpected
Similar spelling:   unpredictive
  unpredictable
  unpremeditated
  unprejudiced
  unpredictably
  unprecedented
  unforested
  unparented
  unprotected
  unpressed
  unbridled
  unprepared
  unappareled
  unapparent
  unpretending
  unpriced
  unframed
  unbraced
  unappreciated
  unproved
  unpretentious
  unpaired
  unproductive
  unprompted
  unbarred