Something that reminds you of death is sepulchral. A dreary, misty graveyard at night usually feels sepulchral.

A sepulchre is a tomb or a crypt — a kind of stone room meant for burying a dead body. Something that's sepulchral reminds you of a sepulchre, either because it looks or feels like an actual tomb, or simply because it makes you think of death or dying. An empty building might be sepulchral, or a gloomy gathering. The Latin root word is sepelire, "to bury or embalm."

Definitions of sepulchral

adj of or relating to a sepulcher

sepulchral inscriptions”
sepulchral monuments in churches”

adj suited to or suggestive of a grave or burial

“hollow sepulchral tones”
not experiencing or inspiring joy

adj gruesomely indicative of death or the dead

“the sepulchral darkness of the catacombs”
charnel, ghastly
unpleasant or disgusting especially to the senses

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