dawdler vs loafer

dawdler and loafer both are nouns.

Word	Noun	Adjective	Verb	Adverb
dawdler	Yes	No	No	No
loafer	Yes	No	No	No

As nouns, loafer is a hypernym of dawdler; that is, loafer is a word with a broader meaning than dawdler:

dawdler: someone who takes more time than necessary; someone who lags behind
loafer: person who does no work

Other hypernyms of dawdler include bum, do-nothing, idler, layabout.

dawdler (noun)	loafer (noun)
someone who takes more time than necessary; someone who lags behind	person who does no work