dark

somber

pensive

tensive

sad

gloomy

darkened

melancholy

depressed

mournful

lugubrious

miserable

heartbroken

scary

scared

frightening

dreadful

huge

fearful

nervy

jumpy

terror

terrible

fear

horror

horrible

frightful

formidable

horrific

appalling

appaling

grisly

pessimistic

morbid

unhealthful

despairing

cynic

cynical

doleful

mythical

mythic

mystical

mystic

mysterious

strange

unfamiliar

unacquainted

sequestered

secluded

shady

darken

sequester