fiendish

adj : extremely evil or cruel; expressive of cruelty or befitting

hell; "something demonic in him--something that could

be cruel"; "fires lit up a diabolic scene"; "diabolical

sorcerers under the influence of devils"; "a fiendish

despot"; "hellish torture"; "infernal instruments of

war"; "satanic cruelty"; "unholy grimaces" [syn: {demonic},

{diabolic}, {diabolical}, {hellish}, {infernal}, {satanic},

{unholy}]