untouched
adj. B2 Upper Intermediate US //ənˈtətʃt// UK //ʌntˈʌtʃt// un·touched
adj. not changed, damaged, or moved by anyone. You use this to describe something that is still in its original, natural, or perfect state.
adj. remaining in an original, pristine, or natural state; not modified, harmed, or handled by human intervention.
The forest remains untouched by modern development.
After the long hike, we found a beautiful beach that was completely untouched by tourists.
The archaeological site provided a rare glimpse into the past because the burial chamber had remained untouched for over three millennia, preserving every artifact in its original position.
From un- + touched.
Usage
Often used with the preposition 'by' to indicate the force or influence that has not affected the subject.