undiscovered [ˌʌndɪsˈkʌvərd]

例句:

• This site remained undiscovered, though long sought, until recent times.
  虽经长期寻找，但该遗址直到最近才被发现。
  
• BBC Introducing Unsigned, undiscovered and under the radar.
  来自BBC
• The name Vulcan was given to the undiscovered planet.
  一颗不为人知的行星被命名为“祝融”。
  
• a previously undiscovered talent
  以前没被发掘的天才
  
• A little cape which kept us perfectly undiscovered.
  来自Defoe
• There's nothing "undiscovered" about this Cape Town must-visit.
  来自WSJ