Someone not affected, as by a disease.
"Despite his friends catching the flu last week, he remained completely unaffected and is back at work today."
simple past tense and past participle of unaffect
"She was unaffected by the storm, walking calmly through the rain without a single complaint."
undergoing no change when acted upon
"entirely unaffected by each other's writings"
"fibers remained apparently unaffected by the treatment"
emotionally unmoved
"always appeared completely unmoved and imperturbable"
Not affected or changed.
"The old oak tree stood completely unaffected by the recent storm, its branches still reaching toward the sun."