: perversely diabolical <took a fiendish pleasure in hurting people>
: extremely cruel or wicked
: excessively bad, unpleasant, or difficult <fiendish weather>
— fiend·ish·ly adverb
— fiend·ish·ness noun
Examples of FIENDISH
- He takes a fiendish delight in hurting people.
- <a fiendish delight in playing cruel tricks>
First Known Use of FIENDISH
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