1. Shockingly repellent; inspiring horror
   "ghastly wounds"
   - grim, grisly, gruesome, macabre, sick 
2. Gruesomely indicative of death or the dead
   "ghastly shrieks"
   - charnel, sepulchral

Derived forms: ghastlier, ghastliest

See also: alarming, ghastliness, offensive

Encyclopedia: Ghastly

• gill fungus
• gill net
• gill slit
• gill-less
• gill-over-the-ground
• gilled
• Gilles de la Tourette
• Gilles de la Tourette syndrome
• Gillespie
• Gillette
• gillie
• gillyflower
• Gilman
• Gilmer
• gilt
• gilt-edged
• gimbal
• gimbaled
• gimcrack
• gimcrackery
• gimel
• gimlet
• gimlet-eyed
• gimmal
• gimme