scenario (scenarios plural )
1 n-count If you talk about a likely or possible scenario, you are talking about the way in which a situation may develop.
...the nightmare scenario of a divided and irrelevant Royal Family...
2 n-count The scenario of a film is a piece of writing that gives an outline of the story.
(=outline)
nightmare scenario (nightmare scenarios plural )If you describe a situation or event as a nightmare scenario, you mean that it is the worst possible thing that could happen. n-count
Discovering your child takes drugs is a nightmare scenario for most parents.