- adj.魔鬼似的，残忍的; 毒辣; 万恶
Pitt's smile returned, and it was hideously diabolic.
There was a diabolic gleam in his eyes as if something amused him greatly.
Fires lit up a diabolic scene.
1. showing the cunning or ingenuity or wickedness typical of a devil;
"the cold calculation and diabolic art of some statesmen"
"the diabolical expression on his face"
"a mephistophelian glint in his eye"
2. 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"
"infernal instruments of war"