not influenced or affected
"stewed in its petty provincialism untouched by the brisk debates that stirred the old world"
"unswayed by personal considerations"
not having come in contact
"The untouched snow on the mountain peak remained pristine despite the heavy storm below."
emotionally unmoved
"always appeared completely unmoved and imperturbable"
Remaining in its original, pristine state, undamaged; not altered.
"The ancient ruins remained untouched by centuries of rain or human hands, preserving every intricate carving exactly as the builders left them."