hellish

hellish
    adj 1: very unpleasant; "hellish weather"; "stop that god-awful
           racket" [syn: {beastly}, {hellish}, {god-awful}]
    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}, {infernal},
       {satanic}, {unholy}]
    

Hellish \Hell"ish\, a.
   Of or pertaining to hell; like hell; infernal; malignant;
   wicked; detestable; diabolical. "Hellish hate." --Milton. --
   {Hell"ish*ly}, adv. -- {Hell"ish*ness}, n.
   [1913 Webster]
    

98 Moby Thesaurus words for "hellish":
      Acherontic, Draconian, Lethean, Mephistophelian, Plutonian,
      Plutonic, Stygian, Tartarean, anarchic, angry, animal,
      anthropophagous, atrocious, barbaric, barbarous, beastly, bestial,
      bloodthirsty, bloody, bloody-minded, blustering, blusterous,
      blustery, brutal, brutalized, brute, brutish, cannibalistic,
      chaotic, chthonian, chthonic, cruel, cruel-hearted, cursed,
      damnable, demoniac, demoniacal, demonic, demonish, demonlike,
      devil-like, devilish, diabolic, execrable, fell, feral, ferocious,
      fiendish, fiendlike, fierce, frantic, frenzied, furious, ghoulish,
      hellborn, infernal, infuriate, inhuman, inhumane, insensate, mad,
      mindless, murderous, ogreish, orgasmic, orgastic, pandemoniac,
      pandemonic, purgatorial, raging, ravening, raving, rip-roaring,
      ruthless, sadistic, sanguinary, sanguineous, satanic, savage,
      sharkish, slavering, storming, stormy, subhuman, sulfurous,
      tempestuous, troublous, truculent, tumultuous, turbulent,
      unchristian, uncivilized, ungodly, unhuman, uproarious, vicious,
      wild, wolfish