"unaffected" in the adjective sense
1. unaffected
undergoing no change when acted upon
"entirely unaffected by each other's writings"
"fibers remained apparently unaffected by the treatment"
2. insensible, unaffected
unaware of or indifferent to
"insensible to the suffering around him"
3. unmoved, unaffected, untouched
emotionally unmoved
"always appeared completely unmoved and imperturbable"
4. unaffected
free of artificiality sincere and genuine
"an unaffected grace"
Source: WordNet® (An amazing lexical database of English)
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