diabolical vs diabolic

diabolical and diabolic both are adjectives.

Word	Noun	Adjective	Verb	Adverb
diabolical	No	Yes	No	No
diabolic	No	Yes	No	No

As adjectives, diabolical and diabolic are synonyms defined as:

diabolical and diabolic: extremely evil or cruel; expressive of cruelty or befitting hell

Other synonyms of diabolical include demonic, fiendish, hellish, infernal, satanic, unholy.

As adjectives, diabolical and diabolic are synonyms defined as:

diabolical and diabolic: showing the cunning or ingenuity or wickedness typical of a devil

Other synonyms of diabolical include devilish, mephistophelean, mephistophelian.

diabolical (adjective)	diabolic (adjective)
extremely evil or cruel; expressive of cruelty or befitting hell	extremely evil or cruel; expressive of cruelty or befitting hell
showing the cunning or ingenuity or wickedness typical of a devil	showing the cunning or ingenuity or wickedness typical of a devil