benign

US /bɪˈnaɪn/
UK /bɪˈnaɪn/
"benign" picture
1.

和蔼的, 仁慈的

gentle and kind

:
He has a benign smile.
他有一个和蔼的笑容。
The old man was benign and welcoming.
那位老人和蔼可亲
2.

良性的

(of a disease) not harmful in effect: in particular, (of a tumor) not malignant.

:
The doctor confirmed that the tumor was benign.
医生证实肿瘤是良性的
Fortunately, the growth was benign and easily removed.
幸运的是,这个增生是良性的,很容易切除。