fiendish
adjective uk/ˈfiːn.dɪʃ/ us/ˈfiːn.dɪʃ/
literary恶魔般的;残忍的 evil and cruel
巧妙而又困难的；刁钻的，棘手的clever and difficult, sometimes in a bad way
a fiendish crossword 复杂的纵横填字游戏
a fiendish plot 险恶的阴谋
UK old-fashioned极度的 very great
a fiendish price 天价
I'm in a fiendish hurry. 我非常急。
Related word: fiendishness