Immune (adjective)

1. Not susceptible to a particular infection or toxin; having resistance.
2. Protected or exempt by law, right, or privilege.

Origin:

Late latin immunis, from latin in- + munis ready, free.

Examples:

1. Many people are immune to the flu after being vaccinated.
2. The ambassador was immune from prosecution because of his diplomatic status.
3. A healthy body is often capable of becoming immune to various diseases.
4. The country declared itself immune from economic downturns due to its strong economy.
5. People with immune deficiencies have difficulty fighting off infections.