- 1 the body's ability to avoid or not be affected by infection and disease immunity (to something) immunity to infection immunity (against something) The vaccine provides longer immunity against the flu.
- 2 immunity (from something) the state of being protected from something The spies were all granted immunity from prosecution. congressional immunity (= protection against particular laws that is given to politicians) Officials of all member states receive certain privileges and immunities. see also diplomatic immunity
NAmE//ɪˈmyunət̮i//[uncountable, countable](pl. immunities)