A. Malevolent
B. Soft
C. Friendly
D. Unwise
Soft : easy to mould, cut, compress, or fold, not hard or firm to the touch, soft, bland, malleable, moderate, tender, flaccid
Friendly : kind and pleasant.
Unwise : (of a person or action) not wise or sensible, foolish.
Malevolent : having or showing a wish to do evil to others.
Benign : gentle and kind.
Appropriate antonym of Benign is Malevolent.
