noun
one who attacks the reputation of another by slander or libel
• Derivationally related forms:
↑traduce, ↑backbite (for: ↑backbiter), ↑libel (for: ↑libeler), ↑vilify (for: ↑vilifier), ↑slander (for: ↑slanderer), ↑malign (for: ↑maligner), ↑defame (for: ↑defamer)
• Hypernyms: ↑detractor, ↑disparager, ↑depreciator, ↑knocker
Useful english dictionary. 2012.