roadless

詳細解釋：

road.less

adj.（形容詞）
Not containing or crossed by any roads:
無路的或無路可通的：
例句：
roadless wilderness.
無路可走的荒原

Forbidden by law to contain or be crossed by any roads or to be entered by any vehicles:
法律禁止築路或禁止任何車輛進入的：
例句：
tracts of land designated by the government as roadless areas.
被政府指定作為非築路區域的廣袤的土地