guileless /ˈɡaɪllɪs/

• 1. 

  ADJ If you describe someone as guileless, you mean that they behave openly and truthfully and do not try to deceive people. 诚实的 [书面]

  例：

  Joanne was so guileless that Claire had no option but to believe her.

  乔安妮如此诚实，所以克莱尔除了相信她以外没有别的选择。