Source : Webster's Revised Unabridged Dictionary (1913)

Unlooked-for \Un*looked"-for\, a.
   Not looked for; unexpected; as, an unlooked-for event.

Source : WordNet®

unlooked-for
     adj : 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" [syn: {unanticipated}, {unforeseen},
            {out of the blue(p)}]