irritable vs sensitive

irritable is not a noun while sensitive is a noun.

Word	Noun	Adjective	Verb	Adverb
irritable	No	Yes	No	No
sensitive	Yes	Yes	No	No

irritable (noun)	sensitive (noun)
	someone who serves as an intermediary between the living and the dead

irritable (adjective)	sensitive (adjective)
easily irritated or annoyed	responsive to physical stimuli
capable of responding to stimuli	being susceptible to the attitudes, feelings, or circumstances of others
abnormally sensitive to a stimulus	able to feel or perceive
	of or pertaining to classified information or matters affecting national security
	hurting