Disposed to inflict pain or suffering:
Severe and distressing:
Resembling a devil.
Appropriate to a devil, especially in degree of wickedness or cruelty.
1822, T. Creevey, Reminiscences, 28 Jul:
Good or right in conduct or character; sometimes, specif., virtuous in sexual conduct
Extremely vexatious or difficult
extremely evil or cruel; expressive of cruelty or befitting hell
showing the cunning or ingenuity or wickedness typical of a devil
Like Mephistopheles; fiendish, diabolic, crafty, malevolent, sardonic, etc.
Suited to one of good breeding; refined and polite:
Find another word for diabolic. In this page you can discover 21 synonyms, antonyms, idiomatic expressions, and related words for diabolic, like: satanic, cruel, wicked, sinister, devilish, diabolical, kind, nice, moral, fiendish and ghoulish.