non-dogmatic       
adjective (also nondogmatic) uk/ˌnɒn.dɒɡˈmæt.ɪk/ us/ˌnɑːn.dɑːɡˈmæt̬.ɪk/
 非教条的
open to new and different ideas, and not claiming that you are always right, especially in connection with religious beliefs 
  He was a flexible politician, who always looked for an imaginative and non-dogmatic solution to problems. 他是一个灵活的政治家,总是寻找一种富有想象力和非教条主义的解决方案。 
 The aim of the project is to help pupils approach the diversity of religious beliefs in an open and non-dogmatic way.
  - More examples
 - Founded in India 2,500 years ago, Buddhism is a non-exclusive and non-dogmatic religion.
 - The fact that they take a nondogmatic approach to faith does not mean that they take their religion lightly.
 - One thing that surprised us was the non-dogmatic character of most people's attitudes towards their faith.