Definition of diabolical in English:

diabolical

Line breaks: dia|bol|ical
Pronunciation: /dʌɪəˈbɒlɪk(ə)l
 
/

adjective

Derivatives

diabolically

adverb
[as submodifier]: a diabolically clever scheme
More example sentences
  • Unless, of course, you think the Bay of Bigs fiasco was actually a diabolically clever criminal conspiracy to make JFK look bad.
  • And to think we almost walked right into that diabolically clever trap!
  • Social Security is a diabolically inadequate program: if you die, the ‘contributions’ you've made to the system are forfeited, and your heirs are out of luck.

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Word of the day grotesquerie
Pronunciation: grəʊˈtɛskəri
noun
grotesque quality or grotesque things collectively