soft·head·ed /-ˌhɛdɪd/
  (a.)愚蠢的,傻的
  softheaded
       adj : foolish; totally unsound; "an impractical solution"; "a
             crazy scheme"; "half-baked ideas"; "a screwball
             proposal without a prayer of working" [syn: crazy, half-baked,
              screwball]