Dictionary and Thesaurus

Definition of Diabolical

• (a.) 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.

Synonyms of Diabolical

• Devilish
• Diabolic
• Mephistophelian
• Mephistophelean
• Demonic
• Diabolic
• Fiendish
• Hellish
• Infernal
• Satanic
• Unholy

Antonyms of Diabolical

Homophones of Diabolical