sloven vs litter lout

sloven and litter lout both are nouns.

Word	Noun	Adjective	Verb	Adverb
sloven	Yes	No	No	No
litter lout	Yes	No	No	No

As nouns, litter lout is a hyponym of sloven; that is, litter lout is a word with a more specific, narrower meaning than sloven:

Other hyponyms of sloven include litterbug, litterer, slattern, slovenly woman, slut, trollop.

sloven (noun)	litter lout (noun)
a coarse obnoxious person	a person who litters public places with refuse