rotter vs scumbag

rotter and scumbag both are nouns.

Word	Noun	Adjective	Verb	Adverb
rotter	Yes	No	No	No
scumbag	Yes	No	No	No

As nouns, rotter and scumbag are synonyms defined as:

rotter and scumbag: a person who is deemed to be despicable or contemptible

Other synonyms of rotter include bum, crumb, dirty dog, git, lowlife, puke, rat, scum bag, skunk, so-and-so, stinker, stinkpot.

rotter (noun)	scumbag (noun)
a person who is deemed to be despicable or contemptible	a person who is deemed to be despicable or contemptible