disparager vs depreciator

disparager and depreciator both are nouns.

Word	Noun	Adjective	Verb	Adverb
disparager	Yes	No	No	No
depreciator	Yes	No	No	No

As nouns, disparager and depreciator are synonyms defined as:

disparager and depreciator: one who disparages or belittles the worth of something

Other synonyms of disparager include detractor, knocker.

disparager (noun)	depreciator (noun)
one who disparages or belittles the worth of something	one who disparages or belittles the worth of something