hellish nightmare

Translations
адский кошмар
Someone had a hellish nightmare last night.
Кто-то видел адский кошмар прошлой ночью.
Definitions
A hellish nightmare refers to a particularly terrifying or distressing dream that evokes feelings of fear, dread, or anguish, often characterized by chaotic or torturous scenarios that feel overwhelmingly real and disturbing.
Words
hellish

adjective
адский
nightmare

noun
кошмар