immune

nouns

a person who is immune to a particular infection
is a type of (narrower)
a human being
"there was too much for one person to do"

adjectives

relating to the condition of immunity
"the immune system"
is derived from
pertains to
secure against
"immune from taxation as long as he resided in Bermuda"; "immune from criminal prosecution"
is derived from
is similar to
(of persons) freed from or not subject to an obligation or liability (as e.g. taxes) to which others or other things are subject
"a beauty somehow exempt from the aging process"; "exempt from jury duty"; "only the very poorest citizens should be exempt from income taxes"
relating to or conferring immunity (to disease or infection)
is derived from
(usually followed by `to') not affected by a given influence
"immune to persuasion"
is derived from
is similar to
undergoing no change when acted upon
"entirely unaffected by each other's writings"; "fibers remained apparently unaffected by the treatment"