petulance vs choler

petulance and choler both are nouns.

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

As nouns, petulance and choler are synonyms defined as:

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

petulance (noun)	choler (noun)
an irritable petulant feeling	a humor that was once believed to be secreted by the liver and to cause irritability and anger
	a strong emotion; a feeling that is oriented toward some real or supposed grievance
	an irritable petulant feeling