免疫
Meanings
1
Medical and biological sense: the body's ability to resist infection, or the process of becoming immune.
Build immunity with a vaccine.
Some diseases give you immunity once you've had them.
2
being hardened; being unaffected; being accustomed
Figurative extension: so used to criticism, hardship, or a situation that one is no longer bothered by it. Often used with 〜に免疫がある or 〜に免疫ができる.
He is immune to criticism.
I've become accustomed to the noise of the city.
Usage patterns
- 〈事〉に免疫があるto be immune/hardened to something (criticism, hardship, etc.)
He's already become immune to criticism.
- 〈病気〉に対する免疫を持つto have immunity against a disease
Many people have immunity against this virus.
- 〈事〉に免疫ができるto become hardened/desensitized to something over time
After working overtime every day, I've become used to the busyness.
- 免疫をつけるto build up immunity
You get vaccinated to build up immunity.
- 免疫がないto have no immunity/resistance (to a disease or a hardship)
Many people have no immunity to this disease.