wishy-washy /ˈwɪʃiˌwɔʃi, ˌwɑ-/
  (a.)淡的,水分多的,無聊的
  Wish·y-wash·y a.  Thin and pale; weak; without strength or substance; -- originally said of liquids. Fig., weak-minded; spiritless.
     A weak wishy-washy man who had hardly any mind of his own.   --A. Trollope.
  Wish·y-wash·y, n. A weak or thin drink or liquor; wish-wash.
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  wishy-washy
       adj : weak in willpower [syn: namby-pamby, spineless]