im·mune /ɪmˈjun/ 形容詞
1. Exempt; protected. -- Im*mu*nize v. t.
Im·mune n. One who is immune; esp., a person who is immune from a disease by reason of previous affection with the disease or inoculation.
adj 1: relating to the condition of immunity; "the immune system"
2: secure against; "immune from taxation as long as he resided
in Bermuda"; "immune from criminal prosecution"
3: relating to or conferring immunity (to disease or infection)
4: (usually followed by `to') not affected by a given
influence; "immune to persuasion"
n : a person who is immune to a particular infection