layabout vs do-nothing

layabout and do-nothing both are nouns.

Word	Noun	Adjective	Verb	Adverb
layabout	Yes	No	No	No
do-nothing	Yes	Yes	No	No

As nouns, layabout and do-nothing are synonyms defined as:

Other synonyms of layabout include bum, idler, loafer.

layabout (noun)	do-nothing (noun)
person who does no work	person who does no work

layabout (adjective)	do-nothing (adjective)
	characterized by inability or unwillingness to work toward a goal or assume responsibility