Pertaining to the devil; resembling, or appropriate, or appropriate to, the devil; devilish; infernal; impious; atrocious; nefarious; outrageously wicked; as, a diabolic or diabolical temper or act.
The augmentation of slaves weakens the states; and such a trade is diabolical in itself, and disgraceful to mankind. George Mason
Advertising men and politicians are dangerous if they are separated. Together they are diabolical. Phillip Adams
In this world of doubt, one thing is certain for me; that I will go on writing songs up to and - I hope, through heavenly means or diabolical - beyond the day I die. Robyn Hitchcock
In every American there is an air of incorrigible innocence, which seems to conceal a diabolical cunning. A. E. Housman
I still have in my memory, almost agonizing impressions of a serious illness which I had when I was about eight years old. Those about me called it scarlet fever, and its very name seemed to have a diabolical quality. Pierre Loti
