fiendish

Although a few of the more fiendish ones will have you wishing all manner of physical harm on the developers.

The enemy saw and with fiendish yells of triumph swarmed upon and over the pieces.

It has upheld the grossest errors and the most fiendish theories as the special revelations of God.

There came a volley followed by fiendish yells and the advance came tearing back, panic-stricken.

A burly warrior scooped up coals on a piece of bark and with a fiendish grin leaped through the smoke.

Laughing when, as you say yourself, the man that she—the cat—wrote that fiendish letter to is in trouble.