title: Unimporting in Scala
body: <p>I heard recently some advice to <em>"unimport an implicit conversion from Predef"</em> - I presume that this means it is possible to <code>unimport</code> unwanted classes too:</p>
  
  <pre><code>import java.awt._
  unimport java.awt.List
  </code></pre>
  
  <p>But this is not the syntax of an "unimport" (i.e. there is no such <code>unimport</code> keyword). What is the correct syntax?</p>