muckraker vs depreciator

muckraker and depreciator both are nouns.

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

As nouns, depreciator is a hypernym of muckraker; that is, depreciator is a word with a broader meaning than muckraker:

muckraker: one who spreads real or alleged scandal about another (usually for political advantage)
depreciator: one who disparages or belittles the worth of something

Other hypernyms of muckraker include detractor, disparager, knocker.

muckraker (noun)	depreciator (noun)
one who spreads real or alleged scandal about another (usually for political advantage)	one who disparages or belittles the worth of something