adj.地图上没标明的；未经勘测的；未知的
The ship had drifted into uncharted waters. 船漂到了海图上未载明的海域。
They set off into the country's uncharted interior. 他们出发前往这个国家人迹罕至的内陆。
The nation's geopolitical strategy is yet uncharted. 该国的地缘政治的策略还不被人所知
