petulance vs irritability

petulance and irritability both are nouns.

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

As nouns, petulance and irritability are synonyms defined as:

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

petulance (noun)	irritability (noun)
an irritable petulant feeling	a disposition to exhibit uncontrolled anger
	excessive sensitivity of an organ or body part
	an irritable petulant feeling