- Main Entry:
- fiend·ish

- Pronunciation:
-
\ˈfēn-dish\
- Function:
- adjective
- Date:
- 1529
1
: perversely diabolical <took a fiendish pleasure in hurting people>
2
: extremely cruel or wicked
3
: excessively bad, unpleasant, or difficult <fiendish weather>
— fiend·ish·ly adverb
— fiend·ish·ness noun