liable to account for one's actions; "governments must be accountable to someone beside themselves"; "fully accountable for what they did"; "the court held the parents answerable for their minor child's acts of vandalism"; "he was answerable to no one"
not anticipated; "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"