immunity vs immune

immunity and immune both are nouns.

Word	Noun	Adjective	Verb	Adverb
immunity	Yes	No	No	No
immune	Yes	Yes	No	No

immunity (noun)	immune (noun)
an act exempting someone	a person who is immune to a particular infection
the quality of being unaffected by something
the state of not being susceptible
(medicine) the condition in which an organism can resist disease

immunity (adjective)	immune (adjective)
	relating to the condition of immunity
	secure against
	(usually followed by `to') not affected by a given influence
	relating to or conferring immunity (to disease or infection)