disprover vs refuter

disprover and refuter both are nouns.

Word	Noun	Adjective	Verb	Adverb
disprover	Yes	No	No	No
refuter	Yes	No	No	No

As nouns, disprover and refuter are synonyms defined as:

disprover and refuter: a debater who refutes or disproves by offering contrary evidence or argument

Other synonyms of disprover include confuter, rebutter.

disprover (noun)	refuter (noun)
a debater who refutes or disproves by offering contrary evidence or argument	a debater who refutes or disproves by offering contrary evidence or argument