名詞 infernal:

1. an inhabitant of hell

形容詞 infernal:

1. characteristic of or resembling hell
2. extremely evil or cruel; expressive of cruelty or befitting hell
   同義詞：demonic, diabolic, diabolical, fiendish, hellish, satanic, unholy
3. expletives used informally as intensifiers
   同義詞：blasted, blame, blamed, blessed, damn, damned, darned, deuced, goddam, goddamn, goddamned
4. of or pertaining to or characteristic of a very uncontrolled and intense fire
5. being of a lower world of the dead

1. Infernal instruments of war.
   戰(zhàn)爭惡魔似的傀儡
2. People still have a general fear for the imaginary infernal powers.
   人們對于虛構(gòu)的地獄中的鬼神仍具有一種普遍的恐懼。

in.fer.nal

adj.（形容詞）

Of or relating to a lower world of the dead.
陰間的：屬于死者的地獄或與死者的地獄有關(guān)的
Of or relating to hell:
地獄的：屬于地獄或與地獄有關(guān)的：
例句：
infernal punishments; infernal powers.
地獄的懲罰；死神

Fiendish; diabolical:
惡魔般的；地獄般的：
例句：
infernal instruments of war.
戰(zhàn)爭惡魔似的傀儡

Abominable; awful:
可恨的；壞透的：
例句：
the infernal racket of the jackhammers.
手提鑿巖機的令人厭惡的轟隆聲

來源：
Middle English
中古英語
from Old French
源自 古法語
from Late Latin onfern3lis
源自 后期拉丁語 onfern3lis
from onfernus [hell]
源自 onfernus [地獄]
from Latin [lower, underground] * see ôdher-
源自 拉丁語 [較低的，地下的] *參見 ôdher-

【引伸】
infer.nally
adv.（副詞）