Meaning of UNAFFECTED in English
If someone or something is ~ by an event or occurrence, they are not changed by it in any way.
She seemed totally ~ by what she’d drunk...
The strike shut down 50 airports, but most international flights were ~.
ADJ: v-link ADJ, oft ADJ by n
If you describe someone as ~, you mean that they are natural and genuine in their behaviour, and do not act as though they are more important than other people.
...this ~, charming couple.
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012