dallier vs dilly-dallier

dallier and dilly-dallier both are nouns.

Word	Noun	Adjective	Verb	Adverb
dallier	Yes	No	No	No
dilly-dallier	Yes	No	No	No

As nouns, dallier and dilly-dallier are synonyms defined as:

Other synonyms of dallier include dillydallier, lounger, mope.

dallier (noun)	dilly-dallier (noun)
someone who wastes time	someone who wastes time