1) Bad 2) Disappointing 3) Dissatisfactory 4) Inadequate 5) Lame 6) Pathetic 7) Poor 8) Thankless 9) Unacceptable 10) Unsatisfying 11) Wrong 1) Below par 2) Disappointing 3) Dissatisfactory 4) Failing 5) Inadequate 6) Not giving satisfaction 7) Not satisfactory 8) Not up to scratch 9) Poor 10) Second-rate 11) Sub-standard 12) Unacceptable 13) Unsatisfying 
[adj] - not giving satisfaction 2. [adj] - not adequate recompense or expiation
adjective 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`
not satisfactory; not satisfying or meeting one's demands; inadequate.