Difference between Charnel House and Hellish

CHARNEL HOUSE vs HELLISH: NOUN

A vault or other building in which the bones of the dead are stored
A place, usually under or near a church, where the bones of the dead are deposited; formerly, and still in parts of Brittany, a kind of portico or gallery, in or near a churchyard, over which the bones of the dead were laid after the flesh was consumed.
A scene or place of great physical suffering and loss of life.
A building, room, or vault in which the bones or bodies of the dead are placed; a charnel.
A vault or building where corpses or bones are deposited

Causing pain, discomfort or distress.
Of or pertaining to hell; like hell; infernal; malignant; wicked; detestable; diabolical.
Highly unpleasant.
Of, resembling, or worthy of hell; fiendish.
Extremely evil or cruel; expressive of cruelty or befitting hell
Very unpleasant

Moldering, Corpses, Detritus, Ghastly, Pigpen, Soulless, Hellhole, Wasteland, Hovel, Rubbish heap, Catacomb, Cesspool, Graveyard, Fetid, Charnel

Murderous, Hell, Terrible, Horrible, Diabolic, Evil, Satanic, Fiendish, Wicked, Demonic, Beastly, Unholy, Diabolical, Unpleasant, Infernal

Flyblown, Squalid, Moldering, Corpses, Detritus, Ghastly, Soulless, Wasteland, Hovel, Rubbish heap, Catacomb, Cesspool, Graveyard, Fetid, Charnel

Murderous, Hell, Terrible, Horrible, Diabolic, Evil, Satanic, Fiendish, Wicked, Demonic, Beastly, Unholy, Diabolical, Unpleasant, Infernal

Assisted by a young German surgeon named Singer and an elderly retired surgeon named Gallaudet, we the students were initiated into the charnel house.
Several of the planting crew had lost their meager lunches in the charnel house, so Sam sent them outside to dig the grave.
So it was that Vesta found herself the sole living person in the palace that had become a charnel house.
Cementerio de Santa Maria Magdalena de Pazzis, main avenue of old section, to the left Charnel House, camera facing west.
In the very charnel house is the nursery of production and animation.
This place was a frightening charnel house where there were many bones, skulls and human hair.
Now it asks whether something worthwhile can be built atop that charnel house.