rotter vs lowlife

rotter and lowlife both are nouns.

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

As nouns, rotter and lowlife are synonyms defined as:

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

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

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