untainted
adjectiveUK /ʌnˈteɪntɪd/
US /ʌnˈteɪntɪd/
Not spoiled or made dirty by anything bad.
The water in the mountain stream was clean and untainted.
OTHER MEANINGS
2. Not affected by anything negative or harmful.
Her reputation remained untainted by the rumors.
3. Not mixed with anything else; free from contamination.
The lab used untainted samples for the experiment.
4. Free from moral wrong or guilt.
He wanted to keep his conscience untainted.