vilifier vs backbiter

vilifier and backbiter both are nouns.

Word	Noun	Adjective	Verb	Adverb
vilifier	Yes	No	No	No
backbiter	Yes	No	No	No

As nouns, vilifier and backbiter are synonyms defined as:

vilifier and backbiter: one who attacks the reputation of another by slander or libel

Other synonyms of vilifier include defamer, libeler, maligner, slanderer, traducer.

vilifier (noun)	backbiter (noun)
one who attacks the reputation of another by slander or libel	one who attacks the reputation of another by slander or libel