petulance vs peevishness

petulance and peevishness both are nouns.

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

As nouns, petulance and peevishness are synonyms defined as:

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

petulance (noun)	peevishness (noun)
an irritable petulant feeling	a disposition to exhibit uncontrolled anger
	an irritable petulant feeling