1. Hellish
   "Hence loathed Melancholy.../In Stygian cave forlorn" 
2. Dark and dismal as of the rivers Acheron and Styx in Hades
   "upon those roseate lips a Stygian hue"
   - Acheronian, Acherontic

See also: dark, infernal

• calendric
• calendrical
• calends
• calendula
• Calendula officinalis
• calenture
• Caley pea
• calf
• calf bone
• calf love
• calf roping
• calf's brain
• calf's liver
• calf's tongue
• calf's-foot jelly
• calfskin
• Calgary
• Cali
• Cali cartel
• caliber
• calibrate
• blueberry bush
• blueberry pie
• blueberry root
• blueberry yogurt