refutal vs falsification

refutal and falsification both are nouns.

Word	Noun	Adjective	Verb	Adverb
refutal	Yes	No	No	No
falsification	Yes	No	No	No

As nouns, refutal and falsification are synonyms defined as:

refutal and falsification: the act of determining that something is false

Other synonyms of refutal include disproof, falsifying, refutation.

refutal (noun)	falsification (noun)
the act of determining that something is false	the act of rendering something false as by fraudulent changes (of documents or measures etc.) or counterfeiting
	the act of determining that something is false
	a willful perversion of facts
	any evidence that helps to establish the falsity of something