diabolical

First attested between 1350 and 1400 from Middle English diabolik, from Middle French diabolique, from Late Latin diabolicus, from Ancient Greek διαβολ-ικός (diabol-ikós, “devilish”), from διάβολος (diábolos).[1]

• (UK) IPA^(key): [ˌdaɪəˈbɒlɪkəɫ]
• (US) IPA^(key): [ˌdaɪəˈbɑlɪkəɫ]

diabolical (comparative more diabolical, superlative most diabolical)

1. Extremely wicked or cruel.
2. Of or concerning the devil; satanic.

• diabolically
• diabolicalness

• diabolic