Definitions

1. noun

A bad dream or a source of anxiety or fear.

“She had recurring nightmares about the accident.”

2. noun

A very unpleasant or difficult situation.

“His financial situation was a nightmare to manage.”

3. noun

A person or thing that causes anxiety or fear.

“The new boss was a nightmare for the team.”

4. verb

To cause someone to experience a bad dream or a source of anxiety or fear.

“The horror movie will nightmare most of its viewers.”

5. verb

To cause a very unpleasant or difficult situation.

“The traffic will nightmare the commuters tomorrow.”