| Date: | 1300-1400 |
| Language: | French |
| Origin: | diabolique, from Greek diabolos 'devil' |
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di‧a‧bol‧i‧cal

1 also di‧a‧bol‧ic
evil or cruel :
diabolical abuse

diabolical abuse2 British English informal extremely unpleasant or bad :
The toilets were in a diabolical state.
The toilets were in a diabolical state. —diabolically
adverb
adverb



