uncharted
adj
1 not marked on a map or chart 图上未标明的
an uncharted island 地图上没有标明的岛.
2 not explored or mapped 未经勘测的; 未绘制成图的
an uncharted area, zone, etc 未经勘探的地区、 地带等
(fig 比喻) the uncharted depths ofhuman emotions 未经探究的人的感情深处
Our researchis sailing into uncharted waters/seas, ie investigating fieldsthat have not been researched before. 我们的研究工作正深入到从未涉及过的领域.