be ‧ nign /bɪˈnaɪn/ BrE AmE adjective
[ Date: 1300-1400 ; Language: Old French ; Origin: benigne , from Latin benignus , from bene 'well' + gigni 'to be born' ]
1 . kind and gentle:
He shook his head in benign amusement.
2 . a benign ↑ tumour (=unnatural growth in the body) is not caused by ↑ cancer OPP malignant