unanticipated
1. [ adjective ] not anticipated
Synonyms: unforeseen out_of_the_blue unlooked-for
Examples:

"unanticipated and disconcerting lines of development"- H.W.Glidden "unforeseen circumstances" "a virtue unlooked-for in people so full of energy" "like a bolt out of the blue"

Related terms: unexpected
Similar spelling:   unintimidated
  uninitiated
  unentitled
  uninitiate