defamer Synonyms

libeler maligner vilifier backbiter traducer slanderer slandering scolder mud-slinger satirist reviler quibbler murderer worrier detractor smearer sidewalk superintendent zapper panner nit-picker belittler nagger faultfinder mudslinger muckraker heckler libelist derogator censor caviler carper calumniator blasphemer blamer blackener baiter attacker asperser censurer complainant complainer lampooner knocker fretter doubter disparager depreciator denigrator decrier cynic