" bloodcurdling "

1: causing great horror or fear;

  * e.g., " ... We heard bloodcurdling stories about the war. "

•  Synonyms : 

•  alarming,

•  dire,

•  direful,

•  fearful,

•  fearsome,

•  forbidding,

•  formidable,

•  frightening,

•  gut-wrenching,

•  hair-raising,

•  heart-stopping,

•  intimidating,

•  redoubtable,

•  scary,

•  terrifying,

•  appalling,

•  atrocious,

•  awful,

•  dreadful,

•  frightful,

•  ghastly,

•  grisly,

•  gruesome,

•  hideous,

•  horrendous,

•  horrible,

•  horrid,

•  horrific,

•  horrifying,

•  lurid,

•  macabre,

•  monstrous,

•  nightmare,

•  nightmarish,

•  shocking,

•  terrible,

•  terrific,

•  abhorrent,

•  deplorable,

•  disagreeable,

•  disgusting,

•  distasteful,

•  loathsome,

•  nauseating,

•  noisome,

•  obnoxious,

•  obscene,

•  offensive,

•  repugnant,

•  repulsive,

•  revolting,

•  sickening,

•  abominable,

•  evil,

•  foul,

•  heinous,

•  noxious,

•  odious,

•  unspeakable,

•  vile,

•  grotesque,

•  ugly,

•  unsightly

•  Antonyms : 

•  agreeable,

•  appealing,

•  attractive,

•  delectable,

•  delicious,

•  delightful,

•  enjoyable,

•  enticing,

•  inviting,

•  pleasant,

•  pleasing,

•  pleasurable,

•  satisfying,

•  welcome,

•  cheering,

•  comforting,

•  soothing