infernal

[ in-fur-nl ]
/ ɪnˈfɜr nl /

adjective

hellish; fiendish; diabolical: an infernal plot.
extremely troublesome, annoying, etc.; outrageous: an infernal nuisance.
of, inhabiting, or befitting hell.
Classical Mythology. of or relating to the underworld.

Origin of infernal

1325–75; Middle English < Late Latin infernālis, equivalent to Latin infern(us) situated below, of the underworld (see inferior) + -ālis -al1

OTHER WORDS FROM infernal

in·fer·nal·i·ty, noun in·fer·nal·ly, adverb

Example sentences from the Web for infernal

British Dictionary definitions for infernal

infernal
/ (ɪnˈfɜːnəl) /

adjective

of or relating to an underworld of the dead
deserving hell or befitting its occupants; diabolic; fiendish
informal irritating; confounded

Derived forms of infernal

infernality, noun infernally, adverb

Word Origin for infernal

C14: from Late Latin infernālis, from infernus hell, from Latin (adj): lower, hellish; related to Latin inferus low