Extremely bad, disagreeable, or difficult:
The definition of naughty is someone or something badly behaved, wicked or not in keeping with moral and social standards.
Appropriate to a devil, especially in degree of wickedness or cruelty.
Based on strong likelihood or firm conviction, rather than on the actual evidence:
Evil or immoral:
Of or like an imp; mischievous
The definition of excessive is something or someone that goes beyond what is normal, acceptable or necessary.
Extremely evil or cruel.
Of or like a brute; savage, gross, stupid, sensual, irrational, etc.
Characterized by or indicating future misfortune; ominous:
Being in or attaining the greatest or highest degree; very intense:
Of, resembling, or worthy of hell; fiendish.
Having, showing, or caused by malice; spiteful; intentionally mischievous or harmful
The definition of nefarious is someone who is known for being very wicked.
Reprobate means without morals and without shame.
Of, characteristic of, or like Satan; devilish; infernal; diabolic
Characteristic of a god.
showing the cunning or ingenuity or wickedness typical of a devil
Like Mephistopheles; fiendish, diabolic, crafty, malevolent, sardonic, etc.
in a playfully devilish manner
Not hallowed or consecrated; unholy
Able to be depended on for the discharge of obligations incurred; of unimpaired credit.
Find another word for devilish. In this page you can discover 40 synonyms, antonyms, idiomatic expressions, and related words for devilish, like: fiendish, naughty, diabolical, moral, wicked, impish, excessive, diabolic, brutish, atrocious and demoniac.