diabolical

From Wiktionary

Pronunciation[change]

Adjective[change]

Positive
diabolical

Comparative
more diabolical

Superlative
most diabolical

  1. If someone or something is diabolical, it is very evil or cruel.
    That math test was diabolical! I only knew the answers to three of the questions!
  2. If someone or something is diabolical, it is related to the devil; it is satanic.

Synonyms[change]

Related words[change]