a.

1. 滑的；容易滑的
   The road was slippery after the rain.

   下雨之後道路很滑。

2. （問題等）須小心對待的
   They are faced with slippery economic problems.

   他們面臨棘手的經濟問題。

3. 易滑脫的
4. 油滑的；靠不住的
   That guy is a slippery character.

   那人是一個狡猾的傢伙。

5. 不穩定的；不明確的
   That is a slippery situation.

   局勢很不穩定。

adj.

1. difficult to hold firmly or stand on through being smooth, wet, or slimy.
2. (of a person) evasive and unpredictable.
   ▸(of a word or concept) changing in meaning according to context or point of view.