fussiness vs fretfulness

fussiness and fretfulness both are nouns.

Word	Noun	Adjective	Verb	Adverb
fussiness	Yes	No	No	No
fretfulness	Yes	No	No	No

As nouns, fussiness and fretfulness are synonyms defined as:

Other synonyms of fussiness include choler, crossness, irritability, peevishness, petulance.

fussiness (noun)	fretfulness (noun)
unnecessary elaborateness in details	an irritable petulant feeling
an irritable petulant feeling