immune
adjective
they are immune to hepatitis B |
our business is immune to the economic conditions:
resistant, not subject, not liable, unsusceptible, not vulnerable, not open, not exposed;
protected from, safe from, secure against, not in danger of, exempt from, clear of, free from, unaffected by, proof against;
freed from, absolved from, released from, excused from, relieved of, spared from, excepted from, exempted from;
informal let off.
▷antonyms susceptible.