petulance vs fretfulness

petulance and fretfulness both are nouns.

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

As nouns, petulance and fretfulness are synonyms defined as:

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

petulance (noun)	fretfulness (noun)
an irritable petulant feeling	an irritable petulant feeling