unsuccessful

from WordNet (r) 3.0 (2006)

unsuccessful
    adj 1: not successful; having failed or having an unfavorable
           outcome [ant: {successful}]
    2: failing to accomplish an intended result; "an abortive
       revolt"; "a stillborn plot to assassinate the President"
       [syn: {abortive}, {stillborn}, {unsuccessful}]

from The Collaborative International Dictionary of English v.0.48

Unsuccessful \Un`suc*cess"ful\, a.
   Not successful; not producing the desired event; not
   fortunate; meeting with, or resulting in, failure; unlucky;
   unhappy. -- {Un`suc*cess"ful*ly}, adv. --
   {Un`suc*cess"ful*ness}, n.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

24 Moby Thesaurus words for "unsuccessful":
      abortive, balked, beaten, bootless, cursed, defeated, foiled,
      fruitless, frustrated, hapless, ineffective, ineffectual,
      inefficacious, luckless, sterile, unavailing, unfortunate,
      unfruitful, unlucky, unproductive, unprofitable, useless, vain,
      worthless

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