trackless
/ˈtræklɪs/adjective
1
- (of land) having no paths or tracks on it（陆地）无人迹的, 无路的：
leading travellers into trackless wastelands.
把旅行者带到不见人迹的荒原。
1.1
- poetic/literary not leaving a track or trace〈诗/文〉无踪迹的, 不留痕迹的。
2
- (of a vehicle or component) not running on a track or tracks（车辆或车身部分）无轨的, 不在轨道上运行的。