Diabolical Explained

Diabolical may refer to:

• Evil, the profound immorality, especially when regarded as a supernatural force, for example in religious belief
• The Devil, believed in many religions, myths and cultures to be a supernatural entity that is the personification of evil and the enemy of God and humankind
• Diabolical (album), a 1998 studio album by the Swedish melodic black metal band Naglfar
• Diabolical, a 2001 studio album by the American rapper Mr. Lucci
• The Diabolical, a 2015 American science fiction horror film
• , a 2022 American adult animated superhero anthology spin-off of the television series The Boys