macabre (n.)
macabre (adj.)
- appalling
 - astounding
 - awe-inspiring
 - awesome
 - awful
 - blue
 - cadaverous
 - deadly
 - deathlike
 - deathly
 - dire
 - direful
 - dread
 - dreaded
 - dreadful
 - eerie
 - eldritch
 - fearsome
 - fell
 - fiendish
 - formidable
 - frightening
 - frightful
 - ghastly
 - ghostlike
 - ghostly
 - ghoulish
 - gory
 - grim
 - grisly
 - grotesque
 - gruesome
 - haggard
 - hideous
 - horrendous
 - horrible
 - horrid
 - horrific
 - horrifying
 - livid
 - lurid
 - morbid
 - mortuary
 - pale
 - redoubtable
 - shocking
 - spooky
 - terrible
 - terrific
 - terrifying
 - tremendous
 - uncanny
 - unearthly
 - wan
 - weird