worrywart vs fuss-budget

worrywart and fuss-budget both are nouns.

Word	Noun	Adjective	Verb	Adverb
worrywart	Yes	No	No	No
fuss-budget	Yes	No	No	No

As nouns, worrywart and fuss-budget are synonyms defined as:

worrywart and fuss-budget: thinks about unfortunate things that might happen

Other synonyms of worrywart include fusspot, worrier.

worrywart (noun)	fuss-budget (noun)
thinks about unfortunate things that might happen	thinks about unfortunate things that might happen