viperish

Into the eyes of the halfbreed came a viperish light that almost stilled Oliver's heartbeats.

A fresh taunt trembled on his viperish tongue, when Gregory plucked at the skirts of his coat, and drew him aside.

She was a harsh and tyrannous woman still, but not now openly viperish or cruel.

She cast one viperish look at me as I entered the hall, but said nothing, and went slowly upstairs without returning my bow.

Grace started up angrily from her seat, and fixed her viperish eyes on Mercy.