The Collaborative International Dictionary
Unbenign
Unbenign \Un`be*nign"\, a. Not benign; malignant.
Wiktionary
unbenign
a. Not benign; malevolent.
Usage examples of "unbenign".
It was easy to imagine that this desolate region, not frequented by mankind, was the playground of unbenign spirits, and he fancied, as the Pacha had done, that elfish beings scoffed among the pines upon the plain.