1. acrid-(AK-rid) (adj.) unpleasantly pungent in taste or odor

2. aghast- (adj.) showing signs of terror or horror

3. bugaboo- (n.) an imaginary object of fear

4. Cadaverouslyshriveled
cadaverously- (adv.) like a cadaver or a corpse
Cadaverouslyshriveled

5. clairvoyance- (n.) the ability to see ghosts, read minds, or predict the future

6. clandestine- (adj.) happening secretly

7. decrepit (di-krepit/ ) (adj.) worn from old age

8. macabre- MAHcob
(adj.) gruesome and horrifying; ghastly; horrible.
2. of, pertaining to, dealing with, or representing death, esp. its grimmer or uglier aspect.

9. pall- (p-all) (n.) a mood that creates a gloomy effect

10. pernicious-per-nish-uh s
(adj.) highly destructive, wicked having a harmful effect

11. phantasm- fan-ta-zəm
(n.) an illusion or ghost; figment of the imagination

12. sepulchre -se-pəl-kər- (n.) a place of burial,usually a tomb