villain vs scoundrel

villain and scoundrel both are nouns.

Word	Noun	Adjective	Verb	Adverb
villain	Yes	No	No	No
scoundrel	Yes	No	No	No

As nouns, villain and scoundrel are synonyms defined as:

villain and scoundrel: a wicked or evil person; someone who does evil deliberately

villain (noun)	scoundrel (noun)
a wicked or evil person; someone who does evil deliberately	a wicked or evil person; someone who does evil deliberately
the principal bad character in a film or work of fiction