形容詞 diabolical:

1. showing the cunning or ingenuity or wickedness typical of a devil
   同義詞：devilish, diabolic, mephistophelian, mephistophelean
2. extremely evil or cruel; expressive of cruelty or befitting hell
   同義詞：demonic, diabolic, fiendish, hellish, infernal, satanic, unholy

1. The film was diabolical.
   這部電影糟透了。

di.a.bol.i.cal

adj.（形容詞）
Of, concerning, or characteristic of the devil; satanic.
惡魔的：惡魔的，關(guān)于惡魔的，有惡魔性質(zhì)的；窮兇極惡的
Appropriate to a devil, especially in degree of wickedness or cruelty.
惡魔似的：惡魔一般的…，尤指刻毒的或殘忍的程度

來(lái)源：
From Middle English deabolik
源自 中古英語(yǔ) deabolik
from Old French diabolique
源自 古法語(yǔ) diabolique
from Late Latin diabolicus
源自 后期拉丁語(yǔ) diabolicus
from Latin diabolus [devil] * see devil
源自 拉丁語(yǔ) diabolus [魔鬼] *參見(jiàn) devil

【引伸】
di.abol.ically
adv.（副詞）
di.abol.icalness
n.（名詞）