hellish
Definitions
Resembling or characteristic of hell; extremely unpleasant, wretched, or painful.
Extremely difficult, stressful, or chaotic.
Examples
The commuters endured a hellish journey through the city during the massive snowstorm.
After working a hellish twelve-hour shift, she was exhausted and ready to collapse.
Synonyms
infernal dreadful abominable grueling nightmarish torturous execrable
Antonyms
heavenly delightful blissful pleasant wonderful idyllic divine