| calumniatory | (adj) (used of statements) harmful and often untrue; tending to discredit or malign, Syn. calumnious, denigrating, defamatory, denigratory, libellous, libelous, denigrative, slanderous |
| Denigrator | n. One who, or that which, blackens. [ 1913 Webster ] |
| denigratory | a. same as denigrating. [ PJC ] |