[1] : The Collaborative International Dictionary of English v.0.48

infernal \infer"nal\, n.
   an inhabitant of the infernal regions; also, the place
   itself. obs. --drayton.
   1913 webster

[2] : The Collaborative International Dictionary of English v.0.48

infernal \infer"nal\, a. f. infernal, l. infernalis, fr.
   infernus that which lies beneath, the lower. see inferior.
   1913 webster
   1. of or pertaining to or suitable for the lower regions,
      inhabited, according to the ancients, by the dead;
      pertaining to pluto's realm of the dead, the tartarus of
      the ancients.
      1913 webster

            the elysian fields, the infernal monarchy. --garth.
      1913 webster

   2. of or pertaining to, resembling, or inhabiting, hell;
      suitable for hell, or to the character of the inhabitants
      of hell; hellish; diabolical; as, infernal spirits, or
      conduct.
      1913 webster

            the instruments or abettors in such infernal
            dealings.                             --addison.
      1913 webster

   infernal machine, a machine or apparatus maliciously
      designed to explode, and destroy life or property.

   infernal stone lapis infernalis, lunar caustic;
      formerly so called. the name was also applied to caustic
      potash.

   syn: tartarean; stygian; hellish; devilish; diabolical;
        satanic; fiendish; malicious.
        1913 webster
see also:
inferior infernal machine infernal stone lapis infernalis 

[3] : WordNet (r) 2.0

infernal
     adj 1: characteristic of or resembling hell; "infernal heat and
            noise"
     2: extremely evil or cruel; expressive of cruelty or befitting
        hell; "something demonic in him--something that could be
        cruel"; "fires lit up a diabolic scene"; "diabolical
        sorcerers under the influence of devils"; "a fiendish
        despot"; "hellish torture"; "infernal instruments of war";
        "satanic cruelty"; "unholy grimaces" syn: demonic, diabolic,
         diabolical, fiendish, hellish, satanic, unholy
     3: expletives used informally as intensifiers; "he's a blasted
        idiot"; "it's a blamed shame"; "a blame cold winter"; "not
        a blessed dime"; "i'll be damned or blessed or darned or
        goddamned if i'll do any such thing"; "he's a damn or
        goddam or goddamned fool"; "a deuced idiot"; "tired or
        his everlasting whimpering"; "an infernal nuisance" syn:
        blasted, blame, blamed, blessed, damn, damned,
         darned, deuced, everlasting, goddam, goddamn, goddamned
     4: relating to or inhabiting hell; "his infernal majesty";
        "infernal fires"; "infernal punishments"
     5: being of a lower world of the dead; "infernal regions" ant:
         supernal
     n : an inhabitant of hell; "his roar made the infernals quake"
see also:
demonic diabolic diabolical fiendish hellish satanic 
unholy blasted blame blamed blessed 
damn damned darned deuced everlasting 
goddam goddamn goddamned supernal 

[4] : Moby Thesaurus II by Grady Ward, 1.0

100 moby thesaurus words for "infernal":
   acherontic, draconian, hadean, lethean, mephistophelian, plutonian,
   plutonic, stygian, tartarean, absolute, animal, anthropophagous,
   atrocious, barbaric, barbarous, beastly, bestial, blamed, blasted,
   blessed, bloodthirsty, bloody, bloody-minded, brutal, brutalized,
   brute, brutish, cannibalistic, chthonian, chthonic, cimmerian,
   confounded, cruel, cruel-hearted, cursed, cussed, damnable, damned,
   demoniac, demoniacal, demonic, demonical, devilish, diabolic,
   diabolical, dire, downright, dreadful, evil, execrable, fell,
   feral, ferocious, fiendish, fiendlike, fierce, flagitious,
   ghoulish, heinous, hellborn, hellish, inhuman, inhumane,
   iniquitous, maleficent, malevolent, malicious, murderous, nether,
   out-and-out, outright, pandemoniac, pandemonic, plutonian,
   plutonic, purgatorial, ruthless, sadistic, sanguinary, sanguineous,
   satanic, savage, sharkish, sinister, slavering, straight-out,
   stygian, subhuman, sulfurous, thoroughgoing, truculent,
   unchristian, uncivilized, underworld, ungodly, unhuman, vicious,
   villainous, wicked, wolfish

Infernal >> I Words
Infernal, definition of term: Infernal
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