A very bad dream, or an event that is like a bad dream
A person who is easily taken advantage of, especially by being cheated or blamed for something
NOUN
Nightmare - A very bad dream, or an event that is like a bad dream
Mr. and Mrs. Brown thought their cruise on the Diamond Princess would be wonderful, but it turned into a nightmare when the Coronavirus broke out on the ship.
When Arnold realized that someone had electronically stolen his sheet with his 50 passwords to all his accounts, he was petrified, realizing all the harm they could do if he didn't stop them quickly.