excitability vs volatility

excitability and volatility both are nouns.

Word	Noun	Adjective	Verb	Adverb
excitability	Yes	No	No	No
volatility	Yes	No	No	No

As nouns, excitability and volatility are synonyms defined as:

Other synonyms of excitability include excitableness.

excitability (noun)	volatility (noun)
being easily excited	being easily excited
excessive sensitivity of an organ or body part	the trait of being unpredictably irresolute
	the property of changing readily from a solid or liquid to a vapor