nonconfrontational       
adjective (also non-confrontational) uk/ˌnɒn.kɒn.frʌnˈteɪ.ʃən.əl/ us/ˌnɑːn.kɑːn.frənˈteɪ.ʃən.əl/
 非对抗性的
behaving in a way that is unlikely to upset anyone or cause an argument
  Many will prefer his nonconfrontational attitude to my more direct approach.
 Drama is a holistic tool that is useful for addressing serious issues in an engaging, non-confrontational and inspiring way. 戏剧是一种全面手段,有助于以引人入胜、非对抗性和鼓舞人心的方式解决严重问题。 
 - More examples
 - These role plays serve to encourage a playful and nonconfrontational spirit.
 - Clients reported positive experiences, appreciating the non-confrontational approach employed by the trainers.
 - This avoidance approach, while nonconfrontational, treats the user as incompetent.