undergoing no change when acted upon; "entirely unaffected by each other's writings"; "fibers remained apparently unaffected by the treatment" free of artificiality; sincere and genuine; "an unaffected grace
approval If you describe someone as unaffected, 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 unaffected, charming couple. = genuine
If someone or something is unaffected by an event or occurrence, they are not changed by it in any way. She seemed totally unaffected by what she'd drunk The strike shut down 50 airports, but most international flights were unaffected