idler vs do-nothing

idler and do-nothing both are nouns.

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

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

Other synonyms of idler include bum, layabout, loafer.

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

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