fiendish
adjective/ˈfiːndɪʃ/
/ˈfiːndɪʃ/
[usually before noun]- cruel and unpleasant
- a fiendish act
- shrieks of fiendish laughter
- (informal) extremely clever and complicated, often in an unpleasant way
- a puzzle of fiendish complexity
- a fiendish plan
- (informal) extremely difficult
- a fiendish problem
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fiendish