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Date: 1300-1400
Language: French
Origin: diabolique, from Greek diabolos 'devil'

diabolical

adjective
     
di‧a‧bol‧i‧cal
1 also di‧a‧bol‧ic evil or cruel:
diabolical abuse
2 British English informal extremely unpleasant or bad:
The toilets were in a diabolical state.
diabolically adverb

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