undiscovered
adj. 未被发现的；未勘探的
例句
The name Vulcan was given to the undiscovered planet.
“伏尔坎”这个名字被用来给未被发现的星体命名。
《柯林斯英汉双解大词典》
In Juan's world, the unknown and undiscovered was vast and marvelous.
在 Juan 的世界里，未知和未被发现的东西是广阔而不可思议的。
In any case, failure to find fossils of a predicted kind does not rule out their existence in an undiscovered deposit.
在任何情况下，没有发现预测到的化石并不表示它们不存在于未发现的矿床中。
