English edit

Etymology edit

From diabolic +‎ -al.

Pronunciation edit

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

Adjective edit

diabolical (comparative more diabolical, superlative most diabolical)

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

Derived terms edit

Translations edit