[1] : The Collaborative International Dictionary of English v.0.48

unsatisfactory \unsatisfactory\
   see satisfactory.
see also:
satisfactory 

[2] : WordNet (r) 2.0

unsatisfactory
     adj : not giving satisfaction; "shops should take back
           unsatisfactory goods"; "her performance proved to be
           unsatisfactory"; "life is becoming increasingly
           unsatifactory"; "our discussion was very
           unsatisfactory" ant: satisfactory
see also:
satisfactory 

[3] : Moby Thesaurus II by Grady Ward, 1.0

46 moby thesaurus words for "unsatisfactory":
   amiss, bad, bum, crappy, defective, deficient, disappointing,
   disheartening, displeasing, dissatisfactory, failing,
   falling short, faulty, flawed, found wanting, imperfect,
   inadequate, inappropriate, incommensurate, incompetent, incomplete,
   inferior, insufficient, lacking, not enough, not good enough, poor,
   punk, rotten, second best, tantalizing, teasing, too little,
   unacceptable, unequal to, unfulfilling, ungratifying, unqualified,
   unsatisfying, unsufficing, unsuitable, unworthy, up, wanting, weak,
   wrong

Unsatisfactory >> U Words
Unsatisfactory, definition of term: Unsatisfactory
unsatisfactory_pag1.html