untouched
adjective uk/ʌnˈtʌtʃt/ us/ʌnˈtʌtʃt/
C1 未改变的;原封未动的;未受破坏的
not changed or spoiled in any way
Most of the east coast remains untouched by tourism. 东海岸的大部分地区还没受到旅游业的侵扰。
（食物）未动过的
If food is untouched, it has not been eaten
She took a few spoonfuls of soup but left her main course untouched. 她喝了几勺汤，但主菜却没有动过。