The best replacement for immune is autoimmune.

The best alternatives to immune are rated as following:
★★★★★  autoimmune
★★  resistant
★  lymphatic
★  immune
  nonimmune
  adaptive immune
  immuned
  non red cell immune

Your alternative for immune is not listed? Suggest!
Speaking about immune, one probably shouldn't forget about hep b.

Other search terms related to immune and their ratings are:
★★★★★ hep b
You have in mind a companion for immune and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of immune in all years. Click on graph for more.
immune
autoimmune
resistant