defamer vs vilifier

defamer and vilifier both are nouns.

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

As nouns, defamer and vilifier are synonyms defined as:

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

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

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