unforeseen

from WordNet (r) 3.0 (2006)

unforeseen
    adj 1: 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}, {unlooked-for}, {out of the blue(p)}]

from The Collaborative International Dictionary of English v.0.48

Unforeseen \Unforeseen\
   See {foreseen}.

from Moby Thesaurus II by Grady Ward, 1.0

57 Moby Thesaurus words for "unforeseen":
      abrupt, accidental, adventitious, aleatory, casual, causeless,
      chance, chancy, contingent, destinal, dicey, electrifying,
      extraordinary, fatal, fatidic, fluky, fortuitous, hasty, headlong,
      iffy, impetuous, improbable, impulsive, incidental, indeterminate,
      more than expected, nerve-shattering, out-of-the-way,
      past expectation, precipitant, precipitate, precipitous, quick,
      risky, shocking, speedy, startling, sudden, surprise, surprising,
      swift, unannounced, unanticipated, uncaused, undetermined,
      undivined, unexpected, unforeseeable, unguessed, unheralded,
      unhoped for, unlooked-for, unpredictable, unpredicted,
      unprepared for, unsought, without warning