- The definition of infernal is something related to the underworld or hell, or something that is very annoying.
- When it is 110 degrees out and feels as hot as you imagine hell would feel, this is an example of the infernal heat.
- When you can't stand the constant yelling of the kids down the street, this is an example of when you might yell at them to stop that infernal yelling.
infernal definition by Webster's New World
- of the ancient mythological world of the dead
- of hell
- hellish; diabolic; fiendish; inhuman
- Informal hateful; outrageous
Origin: Old French ; from Late Latin infernalis ; from Classical Latin infernus, underground, lower, infernal ; from inferus: see inferior
- infernally adverb
infernal definition by American Heritage Dictionary
- a. Of or relating to a lower world of the dead.b. Of or relating to hell: infernal punishments; infernal powers.
- Fiendish; diabolical: infernal instruments of war.
- Abominable; awful: the infernal racket of the jackhammers.
Origin: Middle English, from Old French, from Late Latin īnfernālis, from īnfernus, hell, from Latin, lower, underground; see ṇdher- in Indo-European roots.
- in·ferˈnal·ly adverb