The Collaborative International Dictionary of English v.0.48:

Censurable \Cen"sur*a*ble\, a.
   Deserving of censure; blamable; culpable; reprehensible; as,
   a censurable person, or censurable conduct. --
   Cen"sur*a*bleness, n. -- Cen"sur*a*bly, adv.
   [1913 Webster]

WordNet (r) 3.0 (2006):

censurable
    adj 1: deserving blame or censure as being wrong or evil or
           injurious; "blameworthy if not criminal behavior";
           "censurable misconduct"; "culpable negligence" [syn:
           blameworthy, blamable, blameable, blameful,
           censurable, culpable]

Moby Thesaurus II by Grady Ward, 1.0:

18 Moby Thesaurus words for "censurable":
   amiss, blamable, blameful, culpable, discreditable, doubtful,
   guilty, improper, inadmissible, incorrect, objectionable,
   questionable, reprehensible, sinful, unacceptable, unholy, wrong,
   wrongful