freethinking
  自由思想(a.)自由思想的
  Free·think·ing, n. Undue boldness of speculation; unbelief. --Berkeley.
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  free-thinking
       adj : unwilling to accept authority or dogma (especially in
             religion) [syn: latitudinarian, undogmatic, undogmatical]
  freethinking
       n : the doctrine that reason is the right basis for regulating
           conduct [syn: rationalism]