slothful vs otiose

slothful and otiose both are adjectives.

Word	Noun	Adjective	Verb	Adverb
slothful	No	Yes	No	No
otiose	No	Yes	No	No

As adjectives, slothful and otiose are synonyms defined as:

Other synonyms of slothful include faineant, indolent, lazy, work-shy.

slothful (adjective)	otiose (adjective)
disinclined to work or exertion	disinclined to work or exertion
	producing no result or effect
	serving no useful purpose; having no excuse for being