devilish

devilish
/ˈdevəlɪʃ; `dɛvəlɪʃ/ adj
wicked; cruel 邪恶的; 恶毒的; 残忍的: a devilish plan 毒计
    devilish cunning 奸诈. devilish, adv (dated infml 旧, 口) very 很; 非常: devilish hot 热得要命.

牛津英汉双解词典