choler vs irritability

choler and irritability both are nouns.

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

As nouns, choler and irritability are synonyms defined as:

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

choler (noun)	irritability (noun)
a humor that was once believed to be secreted by the liver and to cause irritability and anger	a disposition to exhibit uncontrolled anger
a strong emotion; a feeling that is oriented toward some real or supposed grievance	excessive sensitivity of an organ or body part
an irritable petulant feeling	an irritable petulant feeling