devilish, diabolic, diabolical, mephistophelian, mephistophelean (adj)

showing the cunning or ingenuity or wickedness typical of a devil

"devilish schemes"; "the cold calculation and diabolic art of some statesmen"; "the diabolical expression on his face"; "a mephistophelian glint in his eye"

demonic, diabolic, diabolical, fiendish, hellish, infernal, satanic, unholy (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"

diabolic (Adjective)

Showing wickedness typical of a devil.

diabolic (Adjective)

Extremely evil or cruel.

Diabolic

Diabolic is an American death metal band from Tampa Bay, Florida, United States, founded in 1996 by bassist/vocalist Paul Ouellette, drummer Aantar Lee Coates and guitarist Brian Malone.